The O-Ring, cataloged under National Stock Number 5331-01-478-5997, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kubota Tractor Corp. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Kubota Tractor Corp (CAGE 0XWR1); Jks Boyles Uk Ltd (CAGE KA760); Tvs Supply Chain Solutions Limited (CAGE KCQ24) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-478-5997 |
| Primary Part Number | 15221-33700 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kubota Tractor Corp |
| 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 |
|---|---|
| 15221-33700 PRIMARY | Kubota Tractor Corp (USA) |
| 15221-33700 | Jks Boyles Uk Ltd (GBR) |
| CV147260 | Tvs Supply Chain Solutions Limited (GBR) |
| Reference | Meaning |
|---|---|
| 15221-33700 | 5/9 Secondary reference Engine Distributors, Inc. |
NSN 5331-01-478-5997 is a O-Ring, manufactured by Kubota Tractor Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-478-5997 has 3 manufacturer part numbers on file: 15221-33700 (Kubota Tractor Corp), 15221-33700 (Jks Boyles Uk Ltd), CV147260 (Tvs Supply Chain Solutions Limited).
1 possible match (shared part number, not a government interchangeability claim): 3431-01-506-5036. 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.