The O-Ring, cataloged under National Stock Number 5331-01-088-8643, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-01-088-8643 |
| Primary Part Number | 3-904 N756-75 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | CANCELLED |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Outside Diameter | 0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Cross-Sectional Height | 0.072 INCHES NOMINAL IN |
| Center Hole Diameter | 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS568-904MIL-P-83461 | Sae International Dba Sae International (USA) |
| 3-904 N756-75 | Parker Hannifin Gmbh O-Ring Division (DEU) |
| 3-904N756-75 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 10163893 | Nimikkeistokeskus Ncb Finland (FIN) |
| AS568-904MIL-P-83461 | Society of Automotive Engineers Inc (USA) |
| 3-904 N756-75 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 101-29000 | Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems (USA) |
| 3-904N756-75 | C. E. Conover & Co., Inc. (USA) |
| 12619466-1 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 700-904-355C | Zf Industrieantriebe Witten Gmbh (DEU) |
NSN 5331-01-088-8643 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-01-088-8643 has 10 cross-referenced part numbers: AS568-904MIL-P-83461 (Sae International Dba Sae International), 3-904 N756-75 (Parker Hannifin Gmbh O-Ring Division), 3-904N756-75 (Zf Industrieantriebe Witten Gmbh), 10163893 (Nimikkeistokeskus Ncb Finland), AS568-904MIL-P-83461 (Society of Automotive Engineers Inc) and 5 more.
There are 4 known substitutes for 5331-01-088-8643: 5331-00-068-9528, 5331-00-167-5172, 5999-00-410-2727 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3-904 N756-75: Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Outside Diameter: 0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.072 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-01-088-8643 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.