The O-Ring, cataloged under National Stock Number 5331-01-249-3720, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-249-3720 |
| Primary Part Number | AS28775-257 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Criticality Code Justification | ADYT |
| Elongation Percentage | 160 MAXIMUM |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 5.836 INCHES MINIMUM AND 5.882 INCHES MAXIMUM IN |
| Temp Rating | -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Outside Diameter | 6.137 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS28775-257 | Society of Automotive Engineers Inc (USA) |
| MS28775-257 | Sae International Dba Sae International (USA) |
| MS28775-257 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| AS28775-257 PRIMARY | Sae International Dba Sae International (USA) |
| LL-HX5-0341 | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| SAE-AS28775 | Sae International Dba Sae International (USA) |
| AS28775-257 | Society of Automotive Engineers Inc (USA) |
NSN 5331-01-249-3720 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-249-3720 has 7 cross-referenced part numbers: MS28775-257 (Society of Automotive Engineers Inc), MS28775-257 (Sae International Dba Sae International), MS28775-257 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AS28775-257 (Sae International Dba Sae International), LL-HX5-0341 (Defense Logistics Agency Dba Defense Supply Center Philadelphia) and 2 more.
There is 1 known substitute for 5331-01-249-3720: 5331-01-038-0926. Verify interchangeability with system specifications before substitution.
Key specifications for AS28775-257: Criticality Code Justification: ADYT; Elongation Percentage: 160 MAXIMUM; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 5.836 INCHES MINIMUM AND 5.882 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.