The Seal, cataloged under National Stock Number 5330-01-156-5378, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. The record lists 2 manufacturer part numbers 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 | Seal |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (CAGE 48422) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-156-5378 |
| Primary Part Number | 50878 |
| Item Name | Seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 056750 ITEM 3 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 50878 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
NSN 5330-01-156-5378 is a Seal, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-156-5378 has 2 manufacturer part numbers on file: 056750 ITEM 3 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 50878 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-348-7463. Verify interchangeability with system specifications before substitution.
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.