The O-Ring, cataloged under National Stock Number 5331-01-616-2739, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Brennan Industries. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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 | 5331-01-616-2739 |
| Primary Part Number | FS4000-04 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Brennan Industries |
| Status | ACTIVE |
| Center Hole Diameter | 0.301 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| FS4000-04 PRIMARY | Brennan Industries (USA) |
NSN 5331-01-616-2739 is a O-Ring, manufactured by Brennan Industries, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-616-2739 has 1 manufacturer part number on file: FS4000-04 (Brennan Industries).
Key specifications for FS4000-04: Center Hole Diameter: 0.301 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: SEAL,FACE; End Item Identification: 3930015999978; Material: RUBBER SYNTHETIC. 2 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.