The O-Ring, cataloged under National Stock Number 5331-01-308-5850, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Flowserve 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Flowserve Inc (CAGE 63220) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-308-5850 |
| Primary Part Number | F-55279-1 1/4-12111T ITEM 10 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Flowserve 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 |
|---|---|
| F-55279-1 1/4-12111T ITEM 10 PRIMARY | Flowserve Inc (USA) |
| Reference | Meaning |
|---|---|
| F-55279-1 1/4 1 | C/1 Advisory reference — outside the item-of-supply concept Flowserve Inc |
NSN 5331-01-308-5850 is a O-Ring, manufactured by Flowserve Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-308-5850 has 1 manufacturer part number on file: F-55279-1 1/4-12111T ITEM 10 (Flowserve Inc).
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.