The O-Ring, cataloged under National Stock Number 5331-01-368-7482, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Precision Associates Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Precision Associates Inc (CAGE 30397); Dynalec Corporation (CAGE 12763) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-368-7482 |
| Primary Part Number | 25-237 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Precision Associates Inc |
| 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 |
|---|---|
| 25-237 PRIMARY | Precision Associates Inc (USA) |
| U4GB PIECE 7 PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| U4GB PIECE 7 | 5/9 Secondary reference The Electric Tachometer Corp. |
NSN 5331-01-368-7482 is a O-Ring, manufactured by Precision Associates Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-368-7482 has 2 manufacturer part numbers on file: 25-237 (Precision Associates Inc), U4GB PIECE 7 (Dynalec Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-538-0120. Verify interchangeability with system specifications before substitution.
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.