The Packing Assembly, cataloged under National Stock Number 5330-01-251-1669, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Amec Foster Wheeler North America Corp. Dba Foster Wheeler. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-251-1669 |
| Primary Part Number | ND-43321 PIECE 157 |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Amec Foster Wheeler North America Corp. Dba Foster Wheeler |
| Status | ACTIVE |
| Material Document and Classification | MIL-P-2863 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Material | LEAD AND CELLULOSE OR LEAD AND ASBESTOS AND CELLULOSE 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 |
|---|---|
| ND-43321 PIECE 157 PRIMARY | Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA) |
| Reference | Meaning |
|---|---|
| ND-43321 MARK 157 | 5/9 Secondary reference Amec Foster Wheeler North America Corp. Dba Foster Wheeler |
NSN 5330-01-251-1669 is a Packing Assembly, manufactured by Amec Foster Wheeler North America Corp. Dba Foster Wheeler, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-251-1669 has 1 manufacturer part number on file: ND-43321 PIECE 157 (Amec Foster Wheeler North America Corp. Dba Foster Wheeler).
Key specifications for ND-43321 PIECE 157: Material Document and Classification: MIL-P-2863 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Material: LEAD AND CELLULOSE OR LEAD AND ASBESTOS AND CELLULOSE 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.