The O-Ring, cataloged under National Stock Number 5331-01-655-4757, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Tompkins Industries 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-655-4757 |
| Primary Part Number | DS-MM-26 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Tompkins Industries 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 |
|---|---|
| DS-MM-26 PRIMARY | Tompkins Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 1025C03-0458-06 | 7/2 Vendor item drawing reference The Entwistle Company Llc |
NSN 5331-01-655-4757 is a O-Ring, manufactured by Tompkins Industries Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-655-4757 has 1 manufacturer part number on file: DS-MM-26 (Tompkins Industries Inc).
Key specifications for DS-MM-26: Part Name Assigned by Controlling Agency: O-RING, METRIC, PARALLEL THREAD. 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.