The O-Ring, cataloged under National Stock Number 5331-00-291-3291, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 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 | 5331-00-291-3291 |
| Primary Part Number | 7055154 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | CANCELLED |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Center Hole Diameter | 1.228 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN |
| Elongation Percentage | 150 MAXIMUM |
| Outside Diameter | 1.512 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SAE-AS3570 | Sae International Dba Sae International (USA) |
| 11-218 | Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA) |
| AN123878 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| AS3570-218 | Society of Automotive Engineers Inc (USA) |
| 7055154 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| AN123878 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 62G305-23 | Westinghouse Electric Corp (USA) |
| 62G305-23 | Colt Industries Operating Corp Pratt and Whitney Machine Tool Div |
| 5065D21 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| AS3570-218 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| AS3570-218 PRIMARY | Sae International Dba Sae International (USA) |
NSN 5331-00-291-3291 is a O-Ring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-291-3291 has 11 cross-referenced part numbers: SAE-AS3570 (Sae International Dba Sae International), 11-218 (Strohmeyer, Julie a. Dba Julie a. Strohmeyer), AN123878 (Aeronautical Standards Group Dept of Navy and Air Force), AS3570-218 (Society of Automotive Engineers Inc), 7055154 (U S Army Tank Automotive Command Amsta-Im-Mm) and 6 more.
There are 12 known substitutes for 5331-00-291-3291: 5330-00-179-0968, 3120-00-293-5957, 3040-00-332-0440 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7055154: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Center Hole Diameter: 1.228 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-291-3291 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.