The O-Ring, cataloged under National Stock Number 5331-01-320-9556, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kubota Uk Ltd. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 Uk Ltd (CAGE K5F98); Beta Marine Ltd (CAGE U6420); Stadium Packing Services (CAGE K0949) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-320-9556 |
| Primary Part Number | B05-L REFERENCE 030 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kubota Uk Ltd |
| 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 |
|---|---|
| B05-L REFERENCE 030 | Kubota Uk Ltd (GBR) |
| B05-L REFERENCE 030 | Beta Marine Ltd (GBR) |
| 20-0055/8 | Stadium Packing Services (GBR) |
| 04811-40140 | Beta Marine Ltd (GBR) |
| B05-L/030 | Beta Marine Ltd (GBR) |
| 04811-40140 | Kubota Uk Ltd (GBR) |
| B05-L/030 | Kubota Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 04811-40140 | 3/9 Design control — primary reference Kubota Ltd |
| B05-L/030 | 5/9 Secondary reference Kubota Ltd, Overseas Service Sectionfarm and Industrial Machinery Divisio |
| 04811-40140 | 5/9 Secondary reference Kubota Ltd, Overseas Service Sectionfarm and Industrial Machinery Divisio |
| 04811-40140 | 5/9 Secondary reference C-K Power Products Corp |
| B05-L REFERENCE 030 | 5/9 Secondary reference Kubota Ltd, Overseas Service Sectionfarm and Industrial Machinery Divisio |
NSN 5331-01-320-9556 is a O-Ring, manufactured by Kubota Uk Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-320-9556 has 7 manufacturer part numbers on file: B05-L REFERENCE 030 (Kubota Uk Ltd), B05-L REFERENCE 030 (Beta Marine Ltd), 20-0055/8 (Stadium Packing Services), 04811-40140 (Beta Marine Ltd), B05-L/030 (Beta Marine Ltd) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 6220-01-558-3075. 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.