The O-Ring, cataloged under National Stock Number 5331-01-121-8091, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 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 | 5331-01-121-8091 |
| Primary Part Number | MS28775-279 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | CANCELLED |
| Temp Rating | -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Elongation Percentage | 160 MAXIMUM |
| Outside Diameter | 13.262 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 12.954 INCHES MINIMUM AND 13.014 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2-279N304-75 | Zf Industrieantriebe Witten Gmbh (DEU) |
| MS28775-279 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| M28775-279 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 5516000 ITEM 9 | Naval Sea Systems Command (USA) |
| MS28775-279 | Eriks B.v. (NLD) |
| 0-2-3-5 | Zf Industrieantriebe Witten Gmbh (DEU) |
| MS28775-279 | Blade Industrial Products Inc (USA) |
| 2533405-279 | Zf Industrieantriebe Witten Gmbh (DEU) |
| SAE-AS28775 | Sae International Dba Sae International (USA) |
| MS28775-279 PRIMARY | Sae International Dba Sae International (USA) |
| MS28775-279 | Society of Automotive Engineers Inc (USA) |
NSN 5331-01-121-8091 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-01-121-8091 has 11 cross-referenced part numbers: 2-279N304-75 (Zf Industrieantriebe Witten Gmbh), MS28775-279 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), M28775-279 (Zf Industrieantriebe Witten Gmbh), 5516000 ITEM 9 (Naval Sea Systems Command), MS28775-279 (Eriks B.v.) and 6 more.
There are 4 known substitutes for 5331-01-121-8091: 3030-00-528-4455, 5330-00-580-8590, 5331-01-015-3289 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS28775-279: Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Elongation Percentage: 160 MAXIMUM; Outside Diameter: 13.262 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 6 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-01-121-8091 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.