The O-Ring, cataloged under National Stock Number 5331-01-424-1865, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Undersea Systems International, Inc. Dba Ocean Technology Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Undersea Systems International, Inc. Dba Ocean Technology Systems (CAGE 46646) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-424-1865 |
| Primary Part Number | 336-190-224 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Undersea Systems International, Inc. Dba Ocean Technology Systems |
| 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 |
|---|---|
| 336-190-224 PRIMARY | Undersea Systems International, Inc. Dba Ocean Technology Systems (USA) |
| Reference | Meaning |
|---|---|
| 336-900-009 | 5/9 Secondary reference Undersea Systems International, Inc. Dba Ocean Technology Systems |
NSN 5331-01-424-1865 is a O-Ring, manufactured by Undersea Systems International, Inc. Dba Ocean Technology Systems, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-424-1865 has 1 manufacturer part number on file: 336-190-224 (Undersea Systems International, Inc. Dba Ocean Technology Systems).
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.