The O-Ring, cataloged under National Stock Number 5331-01-021-1906, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Zf Industrieantriebe Witten Gmbh. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 15 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 | 5331-01-021-1906 |
| Primary Part Number | 020 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Zf Industrieantriebe Witten Gmbh |
| Status | CANCELLED |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Outside Diameter | 1.004 INCHES NOMINAL IN |
| Center Hole Diameter | 0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 020 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 1PS49 | Oshkosh Defense Llc (USA) |
| ARP568-020B10 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 2-020N674-7 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| B1226-503 | Dynex/rivett Inc. (USA) |
| 8J2413 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 6689.020.303 | Zf Industrieantriebe Witten Gmbh (DEU) |
| AS568-020 | Society of Automotive Engineers Inc (USA) |
| 11581090PC12 | Jered Llc (USA) |
| C321-606 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 11581090PC12 | Unidynamics/saint Louis Inc Conroe Opns (USA) |
| 216533 | Vickers Inc (USA) |
| 30205030 | Dynex/rivett Inc. (USA) |
| AS-568A-020-70BN | Apple Rubber Products, Inc. Dba Apple Rubber Products Inc (USA) |
| 345926 | Dometic Marine Canada Inc. (CAN) |
| 971410026 | Indra Sistemas, Sociedad Anonima (ESP) |
| 1PS49 | Oshkosh Corp (USA) |
| AS568-020 | Sae International Dba Sae International (USA) |
| 11581090PC12 | Gulf Coast Holdings, Inc Dba Unidynamics (USA) |
NSN 5331-01-021-1906 is a O-Ring, manufactured by Zf Industrieantriebe Witten Gmbh, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-01-021-1906 has 19 cross-referenced part numbers: 020 (Zf Industrieantriebe Witten Gmbh), 1PS49 (Oshkosh Defense Llc), ARP568-020B10 (Zf Industrieantriebe Witten Gmbh), 2-020N674-7 (Parker-Hannifin Corp Div O-Ring Division), B1226-503 (Dynex/rivett Inc.) and 14 more.
There are 12 known substitutes for 5331-01-021-1906: 5305-00-013-1954, 3110-00-156-1796, 5120-00-287-2130 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 020: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; End Item Identification: MRAP - COUGAR ISS 1.0; MRAP - COUGAR ISS 1.5; Outside Diameter: 1.004 INCHES NOMINAL IN; Center Hole Diameter: 0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-01-021-1906 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.