The Gasket, cataloged under National Stock Number 5330-01-533-0857, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Holyhead Marine Services Ltd. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-533-0857 |
| Primary Part Number | ORC-26-370 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Holyhead Marine Services Ltd |
| Status | ACTIVE |
| Reference Data and Literature | SERVICE PARTS LIST TA 0504 PAGE 87 POS 25 AND PAGE 86 PICTORIAL 25 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ORC-26-370 | Holyhead Marine Services Ltd (GBR) |
| 2177329/2 | Steyr Motors North America, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2177329/2 | 5/9 Secondary reference Steyr Motors Gmbh |
| 2177329/2 | 3/9 Design control — primary reference Steyr Motors Gmbh |
| 10040829 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2177329/2 | 5/9 Secondary reference U.s. Defense Services, Inc. Dba Usds |
NSN 5330-01-533-0857 is a Gasket, manufactured by Holyhead Marine Services Ltd, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-533-0857 has 2 manufacturer part numbers on file: ORC-26-370 (Holyhead Marine Services Ltd), 2177329/2 (Steyr Motors North America, Inc.).
Key specifications for ORC-26-370: Reference Data and Literature: SERVICE PARTS LIST TA 0504 PAGE 87 POS 25 AND PAGE 86 PICTORIAL 25; Part Name Assigned by Controlling Agency: WATER PUMP HOUSING GASKET; End Item Identification: WATER PUMP ASSEMBLY ON A 256 MARINE SOLAS. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.