The Packing,preformed, cataloged under National Stock Number 5330-01-558-6138, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Sfc Valve Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Packing,preformed |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Sfc Valve Corporation (CAGE 1GZ83) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-558-6138 |
| Primary Part Number | 525-S5XX-65XFK |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Sfc Valve Corporation |
| 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 |
|---|---|
| 525-S5XX-65XFK PRIMARY | Sfc Valve Corporation (USA) |
| 525-SX11-XM-B ITEM 65 1.0IN | Sfc Valve Corporation (USA) |
| Reference | Meaning |
|---|---|
| 525-SX11-XM-B | D/9 Drawing number reference only Sfc Valve Corporation |
| 325-SX11-XM-B ITEM 65 1.0IN | 5/9 Secondary reference Computer Literacy Press Inc |
NSN 5330-01-558-6138 is a Packing,preformed, manufactured by Sfc Valve Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-558-6138 has 2 manufacturer part numbers on file: 525-S5XX-65XFK (Sfc Valve Corporation), 525-SX11-XM-B ITEM 65 1.0IN (Sfc Valve Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-558-6156. 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.