The O-Ring, cataloged under National Stock Number 5331-01-621-5370, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is B/e Aerospace, Inc. Div Lenexa Business Unit. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | B/e Aerospace, Inc. Div Lenexa Business Unit (CAGE 63367) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-621-5370 |
| Primary Part Number | 72710 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | B/e Aerospace, Inc. Div Lenexa Business Unit |
| 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 |
|---|---|
| 72710 PRIMARY | B/e Aerospace, Inc. Div Lenexa Business Unit (USA) |
NSN 5331-01-621-5370 is a O-Ring, manufactured by B/e Aerospace, Inc. Div Lenexa Business Unit, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-621-5370 has 1 manufacturer part number on file: 72710 (B/e Aerospace, Inc. Div Lenexa Business Unit).
1 possible match (shared part number, not a government interchangeability claim): 7025-01-651-2983. Verify interchangeability with system specifications before substitution.
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.