Menu
Account
On Sale
View all
On Sale
25% Off
50% Off
75% Off
Air Compressors
View all
Air Compressors
Piston Compressors
View all
Piston Compressors
Gas Powered
Base Mounted
Vertical
Horizontal
Duplex
Screw Compressors
View all
Screw Compressors
Base Mounted
Base Mounted with Dryer
Tank Mounted
Tank Mounted with Dryer
Scroll Compressors
View all
Scroll Compressors
Base Mounted
Tank Mounted with Dryer
Tank Mounted
Air Dryers
View all
Air Dryers
Refrigeration Dryers
Air Tanks
View all
Air Tanks
Vertical
Horizontal
Extended Top Plate
Grasshopper
Universal
Vacuum
Accessories
View all
Accessories
Tank Kits
Sight Glasses
Air Preparation
View all
Air Preparation
F+R+L Trios
FR+L Duos
Filter-Regulator Piggybacks
Filters - Particulate
Filters - Coalescing
Regulators
Lubricators
Safety Valves
View all
Safety Valves
Heavy Duty
High Capacity
Compact
Multi-Purpose
Liquid
OEM Specific
Soft-Seat
Hard-Seat
Adjustable
Vacuum
Other
Pipe Fittings
View all
Pipe Fittings
Adapters
Bushings
Nipples
Couplers
Elbows
Tees
Branch Tees
Street Tees
Y Connectors
Crosses
Plugs
Nuts
Replacement Parts
View all
Replacement Parts
Desiccant Beads
Oil Filters
Oils & Lubricants
Filter Elements
View all
Filter Elements
Paper Elements
Polyester Elements
Atlas Copco
View all
Atlas Copco
Air Filters
Air-Oil Seperators
Oil Filters
Oils & Lubricants
Boge
View all
Boge
Air Filters
Campbell Hausfeld
View all
Campbell Hausfeld
Air Filters
Champion
View all
Champion
Air Filters
Chicago Pneumatic
View all
Chicago Pneumatic
Air Filters
CompAir
View all
CompAir
Air Filters
Air-Oil Seperators
Oil Filters
Oils & Lubricants
Doosan
View all
Doosan
Air Filters
Emglo | Jenny
View all
Emglo | Jenny
Air Filters
FS Curtis
View all
FS Curtis
Air Filters
Honda
View all
Honda
Air Filters
Ingersoll Rand
View all
Ingersoll Rand
Air Filters
Air-Oil Seperators
Oil Filters
Oils & Lubricants
Gardner Denver
View all
Gardner Denver
Air Filters
Air-Oil Seperators
Oil Filters
Oils & Lubricants
Mann-Filter
View all
Mann-Filter
Air Filters
Oil Filters
Puma
View all
Puma
Air Filters
Quincy
View all
Quincy
Air Filters
Air-Oil Seperators
Oil Filters
Oils & Lubricants
Rolair
View all
Rolair
Air Filters
Saylor Beall
View all
Saylor Beall
Air Filters
Schulz
View all
Schulz
Air Filters
Solberg
View all
Solberg
Air Filters
Sullair
View all
Sullair
Air Filters
Air-Oil Seperators
Oil Filters
Oils & Lubricants
Sullivan Palatek
View all
Sullivan Palatek
Air Filters
Electric Motors
Category
View all
Category
Push-to-Connect Fittings
View all
Push-to-Connect Fittings
Male Straight Connectors
Male Elbow Connectors
Male Tee Connectors
Male 45 Elbow Connectors
Male Y Connectors
Male Straight Plug-In Connectors
Female Straight Connectors
Female Elbow Connectors
Female Tee Connectors
Single Banjo Connectors
Twin Banjo Connectors
Triple Banjo Connectors
Double Banjo Connectors
Double Twin Banjo Connectors
Triple Twin Banjo Connectors
Straight Unions
Elbow Unions
Tee Unions
Y Unions
U Unions
Cross Unions
Straight Plug-Ins
Elbow Plug-Ins
45 Elbow Plug-Ins
Y Plug-Ins
Barbed Plug-Ins
Double Branch Ys
Triple Run Tees
Tube Splicers
Caps & Plugs
Compression Fittings
View all
Compression Fittings
Male Straight Connectors
Male Elbow Connectors
Male Tee Connectors
Female Straight Connectors
Female Elbow Connectors
Female Tee Connectors
Straight Unions
Elbow Unions
Tee Unions
Cross Unions
Ferrules & Sleeves
Nuts
Caps & Plugs
Inserts & Others
Functional Fittings
View all
Functional Fittings
Ball Valves
View all
Ball Valves
Male Straight Connectors
Male Elbow Connectors
Straight Unions
Elbow Unions
Check Valves
View all
Check Valves
Male Straight Connectors
Straight Unions
Bushings
Couplers
Hand Valves
View all
Hand Valves
Male Straight Connectors
Straight Unions
Bushings
Nipples
Lever
Flow Controllers
View all
Flow Controllers
Male Straight Connectors
Male Elbow Connectors
Straight Unions
Bushings
Rotary Joints
View all
Rotary Joints
Male Straight Connectors
Male Elbow Connectors
Bushings
Nipples
Stop Fittings
View all
Stop Fittings
Male Straight Connectors
Male Elbow Connectors
Straight Unions
Hose Barbs
View all
Hose Barbs
Straight Connectors
Elbow Connectors
Tee Connectors
Unions
View all
Unions
Straight
Elbow
Tee
Y
Cross
Reducers
View all
Reducers
Straight
Tee
Plug-In
Brass
View all
Brass
Elbow
Female Straight
Male Straight
Splicer
Inline Filters
View all
Inline Filters
Hydraulic
Nipple
Pressure Snubber
Repairable
Mufflers
View all
Mufflers
Sintered Bronze
View all
Sintered Bronze
Brass
Zinc-Plated Steel
Polyethylene
Resin
Stainless Steel
High Flow
View all
High Flow
Female
Aluminum
Plastic
Zinc-Plated Steel
Stainless Steel
Repairable
Flow Controllers
View all
Flow Controllers
Brass
Zinc-Plated Steel
Stainless Steel
Brass Ball Valves
View all
Brass Ball Valves
Mini
View all
Mini
Lead-Free
Chrome Plated
High Pressure
Nickel-Plated
Economy Series
General Purpose
Heavy Duty
Auto Drain
Lead-Free
Three Way
Stainless Steel Ball Valves
View all
Stainless Steel Ball Valves
Mini
600 Psi
1000 Psi
2000 Psi
Pressure Gauges
View all
Pressure Gauges
ABS Gauges
Dry Gauges
Dry Vacuum Gauges
Liquid Filled Gauges
Digital Gauges
Solenoid Valves & Coils
Tubing & Accessories
View all
Tubing & Accessories
Polyurethane Tubing
View all
Polyurethane Tubing
Inch Tubing
Metric Tubing
Accessories
View all
Accessories
Air Guns
Tube Racks
Insert Tubes
Insert Tube Clips
Straight Ace Coupler Plugs
Water Fittings
View all
Water Fittings
Straight Male Connectors
Straight Female Connectors
Elbow Male Connectors
Male Plug-In Connectors
Bulkhead Unions
Straight Unions
Elbow Unions
Tee Unions
U Unions
Y Unions
Cross Unions
Straight Reducers
Tee Reducers
3-Way Reducers
Straight Plug-In Adaptors
Elbow Plug-In Adaptors
Straight Plug-In Barbs
Elbow Plug-In Barbs
Plugs
Caps
Vents
View all
Vents
Breather Vent
View all
Breather Vent
Brass
Zinc-Plated Steel
Stainless Steel
Screen Breather
View all
Screen Breather
Zinc-Plated Steel
Stainless Steel
Free Flow Strainer
Breather Plug
Countersink Plug
Cylinder Position Sensor
Safety Valves
View all
Safety Valves
Heavy Duty
Aluminum Systems
View all
Aluminum Systems
Push-to-Connect
View all
Push-to-Connect
Tubing
Male Straight Connectors
Male Elbow Connectors
Male Straight Plug-In Connectors
Female Straight Connectors
Straight Unions
Elbow Unions
45 Elbow Unions
Tee Unions
Saddle Clamps
Straight Plug-Ins
Ball Valves
Exhaust Valves
Quick Couplers
Bushings
Nipples
Couplers
Mufflers
Manifolds
Caps & Plugs
Sealants & O-Rings
Accessories
Clamp-to-Connect
View all
Clamp-to-Connect
Tubing
Threaded Adapters
Couplings
Reducers
Elbows
45 Elbows
150 Flanges
Tees
Saddle Clamps
Butterfly Valves
Caps & Plugs
Accessories
QuickFit 14mm
View all
QuickFit 14mm
Tubing
Accessories
Hose Reels
View all
Hose Reels
Hose Reels
Mounting Channels
Accessories
Replacement Parts
Tools
Accessories
Metallic Fittings
View all
Metallic Fittings
Male Straight Connectors
Male Elbow Connectors
Male Tee Connectors
Male Y Connectors
Male Straight Plug-In Connectors
Female Straight Connectors
Female Elbow Connectors
Single Banjo Connectors
Straight Unions
Elbow Unions
Tee Unions
Y Unions
Cross Unions
Straight Plug-Ins
Elbow Plug-Ins
Tube Splicers
Hose Barbs
Caps & Plugs
Accessories
Male Elbow Flow Controllers
Straight Union Flow Controllers
Pneumatic Kits
Sang-A
View all
Sang-A
Push-to-Connect Fittings
View all
Push-to-Connect Fittings
Male Straight Connectors (PC|POC)
Male Elbow Connectors (PL|PLL|PLLP)
Male 45 Elbow Connectors (PL45)
Male Tee Connectors (PT|PST)
Male Y Connectors (PWT)
Male Straight Plug-In Connectors (PCJ)
Female Straight Connectors (PCF|PMF)
Female Elbow Connectors (PLF)
Female Tee Connectors (PTF)
Single Banjo Connectors (PH|POL|PHF)
Twin Banjo Connectors (PA|PAF)
Double Banjo Connectors (PH2)
Double Twin Banjo Connectors (PA2)
Triple Banjo Connectors (PH3)
Triple Twin Banjo Connectors (PA3)
Straight Unions (PUC|PG|PMM|PPM)
Elbow Unions (PUL|PLM)
Tee Unions (PUT|PUG)
Y Unions (PY|PW)
Cross Unions (PZA|PZA22|PZA31)
Straight Plug-Ins (PGJ)
Elbow Plug-Ins (PLJ|PLLJ|PLGJ)
45 Elbow Plug-Ins (PLJ45|PLLJ45|PLGJ45)
Y Plug-Ins (PYJ|PWJ)
Double Branch Ys (PXT|PXG|PXJ)
Triple Run Tees (PKD|PKG|PKJ)
Tube Splicers (PIJ|PIG)
Barbed Plug-Ins (PJH)
Caps & Plugs (PP|PPF)
Ball Valves
View all
Ball Valves
Male Straight Connectors (BC)
Male Elbow Connectors (BL)
Straight Unions (BUC|BUG|BM)
Elbow Unions (BUL|BLG|BLM)
Check Valves
View all
Check Valves
Male Straight Connectors (PCVC)
Straight Unions (PCVU)
Bushings (PCVF)
Hand Valves
View all
Hand Valves
Male Straight Connectors (HVFS|HVSF)
Straight Unions (HVFF)
Nipples (HVSS|HSV)
Rotary Joints
View all
Rotary Joints
Male Elbow Connectors (NRL|NHRL)
Male Straight Connectors (NRC|NHRC)
Bushings (NHRF)
Nipples (NHRS)
Speed Controllers
View all
Speed Controllers
Male Straight Connectors (NSS)
Male Elbow Connectors (NSE)
Straight Unions (NSF)
Elbow Bushings (NSL)
Stop Fittings
View all
Stop Fittings
Male Straight Connectors (SPC)
Male Elbow Connectors (SPL)
Straight Unions (SPU|SPUM)
Air Blow Guns
Tubing
View all
Tubing
Polyurethane Tubing
Water Fittings
View all
Water Fittings
Male Straight Connectors (WC)
Male Elbow Connectors (WL)
Male Straight Plug-In Connectors (WCJ)
Female Straight Connectors (WCF)
Straight Unions (WMM|WUC|WG)
Elbow Unions (WUL)
Tee Unions (WUT|WUG)
Y & U Unions (WY|WU)
Cross Unions (WZA)
Straight Plug-Ins (WGJ)
Elbow Plug-Ins (WLJ)
Barbed Plug-Ins (WJH|WJH-L)
Caps & Plugs (WP|WPF)
Plastic Hose Barbs
View all
Plastic Hose Barbs
Male Straight Connectors (PHC ST)
Male Elbow Connectors (PHC LT)
Male Tee Connectors (PHC TT)
Straight Unions (PHC S|PHC RS)
Elbow Unions (PHC L)
Tee Unions (PHC T|PHC RT)
Y Unions (PHC Y)
Cross Unions (PHC Z)
Accessories
Adsens
View all
Adsens
Miniature Pressure Switches
Digital Pressure Sensors
IP65 Pressure Sensors
Breather Vents & Strainers
Check Valves
Hand Valves
View all
Hand Valves
Lever Valves
Slide/Sleeve Valves
In-Line Filters & Snubbers
Mufflers
Aignep
View all
Aignep
Push-to-Connect Fittings
View all
Push-to-Connect Fittings
Male Straight Connectors
Male Elbow Connectors
Male 45 Elbow Connectors
Male Tee Connectors
Male Y Connectors
Double Branch Ys
Speed Controllers
View all
Speed Controllers
Male Elbow Connectors
Arrow Pneumatics
View all
Arrow Pneumatics
Desiccant Beads
Air Filter-Regulator Piggybacks
Air Filters - Particulate
Air Filters - Oil Removing
Air Filters - Coalescing
Air Filters - Absorbing
Air Regulators
Air Lubricators
Accessories & Replacement Parts
View all
Accessories & Replacement Parts
Bowl Kits
Drain Kits
Element Kits
Mounting Kits
Repair Kits
Air Preparation
View all
Air Preparation
Accessories
View all
Accessories
Bowl Kits
Repair Kits
Mounting Kits
AST
View all
AST
Push-to-Connect
View all
Push-to-Connect
Tubing
Male Straight Connectors
Male Elbow Connectors
Male Straight Plug-In Connectors
Female Straight Connectors
Straight Unions
Elbow Unions
45 Elbow Unions
Tee Unions
Straight Plug-Ins
Saddle Clamps
Ball Valves
Exhaust Valves
Quick Couplers
Bushings
Nipples
Couplers
Mufflers
Manifolds
Caps & Plugs
Sealants & O-Rings
Accessories
Clamp-to-Connect
View all
Clamp-to-Connect
Tubing
Threaded Adapters
Couplings
Reducers
Elbows
45 Elbows
150 Flanges
Tees
Saddle Clamps
Butterfly Valves
Caps & Plugs
Accessories
QuickFit 14mm
View all
QuickFit 14mm
Tubing
Accessories
Hose Reels
View all
Hose Reels
Hose Reels
Mounting Channels
Accessories
Replacement Parts
Tools
Accessories
Great Lakes Air
View all
Great Lakes Air
Air Filters - Coalescing
Refrigerated Air Dryers
Midwest
View all
Midwest
Pipe Fittings
View all
Pipe Fittings
Adapters|Couplers|Bushings
Nipples
Elbows
Tees
Crosses
Plugs
Drain Accessories
Pipe Ball Valves
View all
Pipe Ball Valves
Mini Ball Valves
Brass Ball Valves
Auto Drain Ball Valves
NSF Approved Ball Valves
Three Way Brass Ball Valves
Stainless Steel Ball Valves
Hose Barbs
View all
Hose Barbs
Male Elbow Connectors
Menders|Splicers|Unions
Straight Connectors
Y-Strainers
Accessories
Koba
View all
Koba
Shock Absorbers
Rate Controls
Accessories
STC Valve
View all
STC Valve
Compression Fittings
View all
Compression Fittings
Male Straight Connectors
Male Elbow Connectors
Male Tee Connectors
Female Straight Connectors
Female Tee Connectors
Straight Unions
Elbow Unions
Tee Unions
Cross Unions
Inserts & Others
Caps & Plugs
Ferrules & Sleeves
Nuts
Push-to-Connect Fittings
View all
Push-to-Connect Fittings
Male Straight Connectors
Male Elbow Connectors
Male Tee Connectors
Male Straight Plug-Ins Connectors
Female Straight Connectors
Straight Unions
Elbow Unions
Tee Unions
Straight Plug-Ins
Elbow Plug-Ins
Tube Splicers
Caps & Plugs
Accessories
Pipe Fittings
View all
Pipe Fittings
Bushings
Hex Plugs
YPC
View all
YPC
Air Preparation
View all
Air Preparation
F+R+L Trios
FR+L Duos
Filter-Regulator Piggybacks
Filters - Particulate
Regulators
Lubricators
Mechanical Valves
Solenoid Valves & Coils
Omorfo Industrial
View all
Omorfo Industrial
Rotary Screw Compressors
WEG
View all
WEG
Electric Motors
FS-Curtis
View all
FS-Curtis
Toledo Tools Air Compressors
Reciprocating Compressors
Rotary Screw Compressors
Oil-Free Scroll Compressors
Oils & Lubricants
Parts
View all
Parts
Transformers
Line Reactors
Accessories
Maintenance Kits
Controller
Check Valves
View all
Check Valves
In Tank
In Line
OEM Equivalent
My Account
Sign In
Create an Account
Home
Replacement Parts
Atlas Copco
ATLAS COPCO OSW4 - Aftermarket OEM Replacement
ATLAS COPCO OSW4 - Aftermarket OEM Replacement
In stock
SKU
145-9261:OSW4
$251.70
Qty
Add to Cart
{{#message}}
{{{message}}}
{{#success}}
View cart
{{/success}}
{{/message}}
More Information
More Information
Approximate Weight
0.250000
Your cart
View Cart
{{^items}}
You have no items in your shopping cart.
{{/items}} {{#items}}
Remove
Edit
{{#product_has_url}}
{{{product_name}}}
{{/product_has_url}} {{^product_has_url}}
{{{product_name}}}
{{/product_has_url}}
{{{product_price}}}
See Details
{{#options}}
{{label}}:
{{{value}}}
{{/options}}
Update
{{/items}}