The O-Ring, cataloged under National Stock Number 5331-00-006-2249, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-006-2249 |
| Primary Part Number | MS28778-8 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Society of Automotive Engineers Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Temp Rating | -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF |
| Elongation Percentage | 80 MAXIMUM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Center Hole Diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Outside Diameter | 0.818 INCHES NOMINAL IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS28778-8 | Society of Automotive Engineers Inc (USA) |
| MS28778-8 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 9469127107 | Pilatus Aircraft Ltd (CHE) |
| 0707489 | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE) |
| MS28778-8 | Airbus Helicopters Uk Ltd (GBR) |
| MS28778-8 | Sae International Dba Sae International (USA) |
NSN 5331-00-006-2249 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-006-2249 has 6 cross-referenced part numbers: MS28778-8 (Society of Automotive Engineers Inc), MS28778-8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 9469127107 (Pilatus Aircraft Ltd), 0707489 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), MS28778-8 (Airbus Helicopters Uk Ltd) and 1 more.
There are 6 known substitutes for 5331-00-006-2249: 5331-00-808-0794, 4730-01-092-6954, 5331-01-220-1924 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS28778-8: Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Elongation Percentage: 80 MAXIMUM; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 7 total characteristics are documented in the Federal Logistics Information System.