The O-Ring, cataloged under National Stock Number 5331-00-641-3763, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 31 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-641-3763 |
| Primary Part Number | MS28775-221 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | CANCELLED |
| Outside Diameter | 1.679 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS28775-221 | Bae Systems Land & Armaments L.p. (USA) |
| 230079111 | Rosomak S.a (POL) |
| AN6227-26 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 2-221 N304-75 | Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA) |
| 9443135AB14 | Zf Industrieantriebe Witten Gmbh (DEU) |
| BACP11S221 | The Boeing Company (USA) |
| 6227-26 | Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo (USA) |
| 2-221 N304-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| NS3969PIECE13 1 | National Oilwell (USA) |
| 902-26 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| 04423627 | Zf Industrieantriebe Witten Gmbh (DEU) |
| SRCBZ1493-221 | Stillman Seal Corporation Div Stillman Seal Corperation (USA) |
| 33295 | Zf Industrieantriebe Witten Gmbh (DEU) |
| PRP568-221-4067-70 | Parco, Llc (USA) |
| W 4072 599 AL | Rheinmetall Air Defence Ag (CHE) |
| SR 832-75-221 | Stillman Seal Corporation Div Stillman Seal Corperation (USA) |
| 1000-011PC26 | Aluf Industries Inc (USA) |
| N304-7-2-221 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| AS28775-221 | Dbr Industries, Inc. Dba Dbr Industries Inc (USA) |
| SAE-AS28775 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
NSN 5331-00-641-3763 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-641-3763 has 50 cross-referenced part numbers: MS28775-221 (Bae Systems Land & Armaments L.p.), 230079111 (Rosomak S.a), AN6227-26 (Zf Industrieantriebe Witten Gmbh), 2-221 N304-75 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division), 9443135AB14 (Zf Industrieantriebe Witten Gmbh) and 45 more.
There are 12 known substitutes for 5331-00-641-3763: 1650-00-049-3875, 2910-00-162-3427, 5331-00-297-9990 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS28775-221: Outside Diameter: 1.679 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN; Center Hole Diameter: 1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 4 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-641-3763 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.