The O-Ring, cataloged under National Stock Number 5331-01-649-5640, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Spx Fluid Power. 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 | 5331-01-649-5640 |
| Primary Part Number | 13943 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Spx Fluid Power |
| 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 |
|---|---|
| 13943 PRIMARY | Spx Fluid Power (USA) |
NSN 5331-01-649-5640 is a O-Ring, manufactured by Spx Fluid Power, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-649-5640 has 1 manufacturer part number on file: 13943 (Spx Fluid Power).
Key specifications for 13943: Part Name Assigned by Controlling Agency: O-RING (1/2 X 3/8 X 1/16 - 012; End Item Identification: MANIFOLD MOUNT SEQUENCE VALVE. 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.