The O-Ring, cataloged under National Stock Number 5331-01-288-6387, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hydrasearch Company, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Hydrasearch Company, Llc (CAGE 32142) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-288-6387 |
| Primary Part Number | 4504-3EU |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4504-3EU PRIMARY | Hydrasearch Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4504-3ED | 5/9 Secondary reference Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging |
NSN 5331-01-288-6387 is a O-Ring, manufactured by Hydrasearch Company, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-288-6387 has 1 manufacturer part number on file: 4504-3EU (Hydrasearch Company, Llc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.