The O-Ring, cataloged under National Stock Number 5331-00-444-0850, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Zf Industrieantriebe Witten Gmbh. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-444-0850 |
| Primary Part Number | B 2575.146.578 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Zf Industrieantriebe Witten Gmbh |
| Status | CANCELLED |
| Center Hole Diameter | 1.299 INCHES NOMINAL IN |
| Outside Diameter | 1.487 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Temp Rating | -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Elongation Percentage | 331 MAXIMUM |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B 2575.146.578 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 1N141300054 | Wass Srl (ITA) |
| 2-125N674-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2-125 | Liftking Manufacturing Corp (CAN) |
| RWS-568-125 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| D2000 | American Society for Testing and Materials Dba Astm International (USA) |
| 2-125 N674-70 | Parker Hannifin Gmbh O-Ring Division (DEU) |
| 51-125 | Standard Pneumatic Engineering Co (USA) |
| 2-125-N674-70 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 2-125N674 | Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Curtiss-Wright / Nu-Torque (USA) |
| ASC1314774 | Asc Pty Ltd (AUS) |
| 2-125 | Zf Industrieantriebe Witten Gmbh (DEU) |
| AS568-125 | Admiral Valve Llc Dba Cpv Manufacturing (USA) |
| AS568-125 | Sae International Dba Sae International (USA) |
| 938273252U01 | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am (USA) |
| 938273252U01 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 95000-125 | Dynex/rivett Corp Power Units and Systems (USA) |
| 2-125N101-70 | Liftking Manufacturing Corp (CAN) |
| PL2640NO7 | Admiral Valve Llc Dba Cpv Manufacturing (USA) |
| 000125EB | Admiral Valve Llc Dba Cpv Manufacturing (USA) |
NSN 5331-00-444-0850 is a O-Ring, manufactured by Zf Industrieantriebe Witten Gmbh, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-444-0850 has 21 cross-referenced part numbers: B 2575.146.578 (Zf Industrieantriebe Witten Gmbh), 1N141300054 (Wass Srl), 2-125N674-70 (Parker-Hannifin Corp Div O-Ring Division), 2-125 (Liftking Manufacturing Corp), RWS-568-125 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 16 more.
There are 9 known substitutes for 5331-00-444-0850: 5320-00-007-3310, 3030-00-133-3282, 5331-00-432-8253 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for B 2575.146.578: Center Hole Diameter: 1.299 INCHES NOMINAL IN; Outside Diameter: 1.487 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-444-0850 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.