The O-Ring, cataloged under National Stock Number 5331-01-620-5960, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sumitomo Precision Usa, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-620-5960 |
| Primary Part Number | M25988-1-160 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sumitomo Precision Usa, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M25988-1-160 PRIMARY | Sumitomo Precision Usa, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5331PL1740078 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5331-01-620-5960 is a O-Ring, manufactured by Sumitomo Precision Usa, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-620-5960 has 1 manufacturer part number on file: M25988-1-160 (Sumitomo Precision Usa, Inc.).
Key specifications for M25988-1-160: Part Name Assigned by Controlling Agency: RING, SEALING TOROIDAL; End Item Identification: OIL COOLER, FUEL COOLED. 0 specifications are documented in the U.S. Government catalog.
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.