The O-Ring, cataloged under National Stock Number 5331-00-580-1216, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-580-1216 |
| Primary Part Number | 2H3931 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | CANCELLED |
| Temp Rating | -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Elongation Percentage | 125 MAXIMUM |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Center Hole Diameter | 3.210 INCHES MINIMUM AND 3.258 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2H3931 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 10076156 | Nimikkeistokeskus Ncb Finland (FIN) |
| ASTM-D2000M3CH810 A25EO16Z1Z | American Society for Testing and Materials Dba Astm International (USA) |
| IPD2H3931 | Industrial Parts Depot, Llc Dba Ipd (USA) |
| 2-236N951-75 | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| 902116709 | General Dynamics European Land Systems-Bridge Systems Gmbh (DEU) |
| AS568-236 | Society of Automotive Engineers Inc (USA) |
| AS568-236 | Sae International Dba Sae International (USA) |
NSN 5331-00-580-1216 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-580-1216 has 8 cross-referenced part numbers: 2H3931 (Caterpillar Inc Div Caterpillar Defense), 10076156 (Nimikkeistokeskus Ncb Finland), ASTM-D2000M3CH810 A25EO16Z1Z (American Society for Testing and Materials Dba Astm International), IPD2H3931 (Industrial Parts Depot, Llc Dba Ipd), 2-236N951-75 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division) and 3 more.
There are 5 known substitutes for 5331-00-580-1216: 5331-00-543-3106, 5331-01-035-4317, 5331-01-059-1659 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2H3931: Temp Rating: -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Elongation Percentage: 125 MAXIMUM; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 6 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-580-1216 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.