The O-Ring, cataloged under National Stock Number 5331-01-540-0665, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hdt Expeditionary Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-540-0665 |
| Primary Part Number | 072-00057 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hdt Expeditionary Systems 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 |
|---|---|
| 072-00057 PRIMARY | Hdt Expeditionary Systems Inc (USA) |
NSN 5331-01-540-0665 is a O-Ring, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-540-0665 has 1 manufacturer part number on file: 072-00057 (Hdt Expeditionary Systems Inc).
Key specifications for 072-00057: Part Name Assigned by Controlling Agency: INLET RING; End Item Identification: AIR CONDITIONER,1.5 TON,60 HZ HORIZONTAL. 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.