The O-Ring, cataloged under National Stock Number 5331-01-445-3101, 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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-445-3101 |
| Primary Part Number | MS28775-132 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Center Hole Diameter | 1.727 INCHES MINIMUM AND 1.747 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS28775-132 PRIMARY | Sae International Dba Sae International (USA) |
| 230079062 | Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA) |
| 7-755-132000 | Zf Industrieantriebe Witten Gmbh (DEU) |
| MS28775-132 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| SAE-AS28775 | Sae International Dba Sae International (USA) |
| 127608429 | Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA) |
| MS28775-132 | Society of Automotive Engineers Inc (USA) |
| MS28775-132 | Parco, Llc (USA) |
| 5331PL1792110 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
NSN 5331-01-445-3101 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-445-3101 has 9 cross-referenced part numbers: MS28775-132 (Sae International Dba Sae International), 230079062 (Leonardo S.p.a. - Electronics Division - Defence Business Area), 7-755-132000 (Zf Industrieantriebe Witten Gmbh), MS28775-132 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), SAE-AS28775 (Sae International Dba Sae International) and 4 more.
There are 3 known substitutes for 5331-01-445-3101: 5331-01-078-4503, 5331-01-146-4563, 5331-01-244-8964. Verify interchangeability with system specifications before substitution.
Key specifications for MS28775-132: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Center Hole Diameter: 1.727 INCHES MINIMUM AND 1.747 INCHES MAXIMUM IN; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.