The O-Ring, cataloged under National Stock Number 5331-01-449-2591, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Precision Scientific Petroleum Instruments Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Precision Scientific Petroleum Instruments Co (CAGE 48619) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-449-2591 |
| Primary Part Number | 221027 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Precision Scientific Petroleum Instruments Co |
| 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 |
|---|---|
| 221027 PRIMARY | Precision Scientific Petroleum Instruments Co (USA) |
NSN 5331-01-449-2591 is a O-Ring, manufactured by Precision Scientific Petroleum Instruments Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-449-2591 has 1 manufacturer part number on file: 221027 (Precision Scientific Petroleum Instruments Co).
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.