The O-Ring, cataloged under National Stock Number 5331-00-722-4976, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-722-4976 |
| Primary Part Number | MS28775-245 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Material | PLASTIC ACRYLONITRILE-BUTADIENE-STYRENE (ABS) |
| Cross-Sectional Height | 0.139 INCHES NOMINAL IN |
| Center Hole Diameter | 4.359 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS28775-245 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| SAE-AS28775 | Sae International Dba Sae International (USA) |
NSN 5331-00-722-4976 is a O-Ring, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-722-4976 has 2 cross-referenced part numbers: MS28775-245 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), SAE-AS28775 (Sae International Dba Sae International).
There are 2 known substitutes for 5331-00-722-4976: 5331-00-579-7921, 5331-01-244-4016. Verify interchangeability with system specifications before substitution.
Key specifications for MS28775-245: Material: PLASTIC ACRYLONITRILE-BUTADIENE-STYRENE (ABS); Cross-Sectional Height: 0.139 INCHES NOMINAL IN; Center Hole Diameter: 4.359 INCHES NOMINAL IN. 3 total characteristics are documented in the Federal Logistics Information System.