The O-Ring, cataloged under National Stock Number 5331-00-500-1781, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 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 | 5331-00-500-1781 |
| Primary Part Number | 52864 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| Center Hole Diameter | 29.940 INCHES MINIMUM AND 30.060 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5331-00-500-1781 is a O-Ring, manufactured by Defense Maritime Solutions, Inc., classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-500-1781 has 5 cross-referenced part numbers: A52864 (Eaton Corporation Dba Eaton Inoac Div Eaton), 52840PC7 (Eaton Corporation Dba Eaton Inoac Div Eaton), 52864 (Defense Maritime Solutions, Inc.), A52864 (Defense Maritime Solutions, Inc.), A52864 (Wartsila Lips Inc).
There are 4 known substitutes for 5331-00-500-1781: 5315-00-141-1697, 5331-00-251-8839, 5895-00-907-5086 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 52864: Center Hole Diameter: 29.940 INCHES MINIMUM AND 30.060 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.