The O-Ring, cataloged under National Stock Number 5331-01-162-4705, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-162-4705 |
| Primary Part Number | 72721-21X3 PIECE 12 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Outside Diameter | 3.520 INCHES NOMINAL IN |
| Temp Rating | -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Center Hole Diameter | 3.076 INCHES MINIMUM AND 3.124 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS28775-338 | Society of Automotive Engineers Inc (USA) |
| 2-338 N230-70 | Zf Industrieantriebe Witten Gmbh (DEU) |
| AMS-P-83461/1 | Society of Automotive Engineers Inc (USA) |
| 5331PL0810149 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 2285X | Carlisle & Finch Co (USA) |
| M83461/1-338 | Society of Automotive Engineers Inc (USA) |
| M83461/1-338 | 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) |
| 72721-21X3 PIECE 12 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| SAE-AS28775 | Sae International Dba Sae International (USA) |
| M83461/1-338 | Parco, Llc (USA) |
| PL3189-1 REV B PC NO.23 | Carlisle & Finch Co (USA) |
| MIL-P-83461/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 3189-1 REV B PC NO.23 | Carlisle & Finch Co (USA) |
| MS28775-338 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 518-5342537 ITE | Naval Sea Systems Command (USA) |
| M83461/1-338 PRIMARY | Sae International Dba Sae International (USA) |
NSN 5331-01-162-4705 is a O-Ring, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-162-4705 has 17 cross-referenced part numbers: AS28775-338 (Society of Automotive Engineers Inc), 2-338 N230-70 (Zf Industrieantriebe Witten Gmbh), AMS-P-83461/1 (Society of Automotive Engineers Inc), 5331PL0810149 (Jednolity Indeks Materialowy - Uniform Material Index), 2285X (Carlisle & Finch Co) and 12 more.
There are 2 known substitutes for 5331-01-162-4705: 5331-00-599-1000, 5331-00-641-4350. Verify interchangeability with system specifications before substitution.
Key specifications for 72721-21X3 PIECE 12: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Outside Diameter: 3.520 INCHES NOMINAL IN; Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Center Hole Diameter: 3.076 INCHES MINIMUM AND 3.124 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.