The Packing,preformed, cataloged under National Stock Number 5330-01-526-8100, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-526-8100 |
| Primary Part Number | LHD0304 NO.18 4IN |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | William E Williams Valve Corp |
| Status | ACTIVE |
| Material Document and Classification | MIL-P-24503B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | GRAPHITE OVERALL |
| 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 |
|---|---|
| LHD0304 NO.18 4IN PRIMARY | William E Williams Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| LHD0304 | D/9 Drawing number reference only William E Williams Valve Corp |
NSN 5330-01-526-8100 is a Packing,preformed, manufactured by William E Williams Valve Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-526-8100 has 1 manufacturer part number on file: LHD0304 NO.18 4IN (William E Williams Valve Corp).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-526-8118. Verify interchangeability with system specifications before substitution.
Key specifications for LHD0304 NO.18 4IN: Material Document and Classification: MIL-P-24503B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Special Features: END ITEM MIL SPEC IS MIL-V-18110E; End Item Identification: CAST STAINLESS GATE VALVE, CLASS 150 LB, 4-INCH LBS; Material: GRAPHITE OVERALL. 2 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.