The O-Ring, cataloged under National Stock Number 5331-01-352-8712, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Crane Pumps & Systems Dba Process Systems Inc Div Process Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Crane Pumps & Systems Dba Process Systems Inc Div Process Systems Inc (CAGE 1XLG4) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-352-8712 |
| Primary Part Number | 320448 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Crane Pumps & Systems Dba Process Systems Inc Div Process Systems 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 |
|---|---|
| 320448 PRIMARY | Crane Pumps & Systems Dba Process Systems Inc Div Process Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 320448 | 5/9 Secondary reference Idsc Holdings Dba Equiserv Dba Equiserv |
NSN 5331-01-352-8712 is a O-Ring, manufactured by Crane Pumps & Systems Dba Process Systems Inc Div Process Systems Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-352-8712 has 1 manufacturer part number on file: 320448 (Crane Pumps & Systems Dba Process Systems Inc Div Process Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-514-1820. 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.