The O-Ring, cataloged under National Stock Number 5331-00-021-3637, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 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 | 5331-00-021-3637 |
| Primary Part Number | AS568-161 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Material | RUBBER CHLOROPRENE CLASS CR |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 5.452 INCHES MINIMUM AND 5.522 INCHES MAXIMUM IN |
| Outside Diameter | 5.693 INCHES NOMINAL IN |
| Temp Rating | -35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| C0873 2-161 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2-161C147-7 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| MY1110 | Lodestone Corp Div of Fedders Corp (USA) |
| AS568-161 | Society of Automotive Engineers Inc (USA) |
| 525238 | Lodestone Corp Div of Fedders Corp (USA) |
| AS568-161 PRIMARY | Sae International Dba Sae International (USA) |
| 2-161C873-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 161-2337 | Parker Hannifin Corporation Div O-Ring Division (USA) |
NSN 5331-00-021-3637 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-021-3637 has 8 cross-referenced part numbers: C0873 2-161 (Parker-Hannifin Corp Div O-Ring Division), 2-161C147-7 (Parker-Hannifin Corp Div O-Ring Division), MY1110 (Lodestone Corp Div of Fedders Corp), AS568-161 (Society of Automotive Engineers Inc), 525238 (Lodestone Corp Div of Fedders Corp) and 3 more.
There are 4 known substitutes for 5331-00-021-3637: 5331-00-021-3638, 5340-00-540-5298, 5331-00-561-0273 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for AS568-161: Material: RUBBER CHLOROPRENE CLASS CR; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 5.452 INCHES MINIMUM AND 5.522 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.