The O-Ring, cataloged under National Stock Number 5331-01-312-0168, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. 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 | Curtiss-Wright Controls, Inc. Div Actuation Division (CAGE 0AHP5) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-312-0168 |
| Primary Part Number | 91-52591-00 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| 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 |
|---|---|
| 91-52591-00 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
NSN 5331-01-312-0168 is a O-Ring, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-312-0168 has 1 manufacturer part number on file: 91-52591-00 (Curtiss-Wright Controls, Inc. Div Actuation Division).
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.