The O-Ring, cataloged under National Stock Number 5331-00-561-0273, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-561-0273 |
| Primary Part Number | 2-161N674-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | CANCELLED |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 5.464 INCHES MINIMUM AND 5.510 INCHES MAXIMUM IN |
| Elongation Percentage | 331 MAXIMUM |
| Temp Rating | -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Outside Diameter | 5.652 INCHES MINIMUM AND 5.734 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS568-161 | Society of Automotive Engineers Inc (USA) |
| 2533405-161 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| MIL-G-21569 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 983-AS5680-357 | Mile Marker Industries, Inc. (USA) |
| AS568-161 | Sae International Dba Sae International (USA) |
| 2-161N674-70 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 161-B46-70 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 2-161 N674-7 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| D1037 | Wanner Engineering Inc (USA) |
NSN 5331-00-561-0273 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-561-0273 has 9 cross-referenced part numbers: AS568-161 (Society of Automotive Engineers Inc), 2533405-161 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MIL-G-21569 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 983-AS5680-357 (Mile Marker Industries, Inc.), AS568-161 (Sae International Dba Sae International) and 4 more.
There are 12 known substitutes for 5331-00-561-0273: 5331-00-021-3637, 5331-00-286-0089, 5331-00-542-0634 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-161N674-70: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 5.464 INCHES MINIMUM AND 5.510 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-561-0273 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.