The Packing,labyrinth,diaphragm, cataloged under National Stock Number 5330-00-375-9788, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Westinghouse Electric Corp. The record lists 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-375-9788 |
| Primary Part Number | 1JH498PC53 |
| Item Name | Packing,labyrinth,diaphragm |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 1JH498PC53 PRIMARY | Westinghouse Electric Corp (USA) |
| 1505007 PRIMARY | Westinghouse Electric Corp (USA) |
| P69827-26IN | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 1JH498PC53 | 5/9 Secondary reference U.S. Government activity |
| H3158377PC53 | 5/2 Secondary reference U.S. Government activity |
| 3158377PC53 | 3/2 Design control — primary reference U.S. Government activity |
| 1JH498PC53 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-00-375-9788 is a Packing,labyrinth,diaphragm, manufactured by Westinghouse Electric Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-375-9788 has 3 manufacturer part numbers on file: 1JH498PC53 (Westinghouse Electric Corp), 1505007 (Westinghouse Electric Corp), P69827-26IN (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-578-0361. Verify interchangeability with system specifications before substitution.
Key specifications for 1JH498PC53: End Item Identification: STEAM TURBINE,SHIPS PROPULSION SYSTEM. 0 specifications are 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.