The O-Ring, cataloged under National Stock Number 5331-01-278-0096, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-278-0096 |
| Primary Part Number | MIL-R-83461/1-134 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Center Hole Diameter | 1.847 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-R-83461/1-134 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 845-2445100PC4,1.250INCH | Naval Ship Systems Command (USA) |
| 845-2445100PC4(1.250IN) | Naval Sea Systems Command (USA) |
| 2620-902PC4(1.250IN) | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| MS28775-134 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| SAE-AS83461/1 | Sae International Dba Sae International (USA) |
| 5331PL1274767 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
NSN 5331-01-278-0096 is a O-Ring, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-278-0096 has 7 cross-referenced part numbers: MIL-R-83461/1-134 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 845-2445100PC4,1.250INCH (Naval Ship Systems Command), 845-2445100PC4(1.250IN) (Naval Sea Systems Command), 2620-902PC4(1.250IN) (Electric Boat Corporation Div General Dynamics Electric Boat), MS28775-134 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.
There are 4 known substitutes for 5331-01-278-0096: 5331-00-585-7724, 5330-00-926-3996, 5331-01-112-4060 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-R-83461/1-134: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Center Hole Diameter: 1.847 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.