The Packing,preformed, cataloged under National Stock Number 5330-01-487-8637, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is National Oilwell Varco Inc Dba National Oilwell. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Packing,preformed |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | National Oilwell Varco Inc Dba National Oilwell (CAGE 52142) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-487-8637 |
| Primary Part Number | G21149 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | National Oilwell Varco Inc Dba National Oilwell |
| 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 |
|---|---|
| G21149 PRIMARY | National Oilwell Varco Inc Dba National Oilwell (USA) |
| Reference | Meaning |
|---|---|
| G95951 | D/9 Drawing number reference only National Oilwell Varco Inc Dba National Oilwell |
NSN 5330-01-487-8637 is a Packing,preformed, manufactured by National Oilwell Varco Inc Dba National Oilwell, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-487-8637 has 1 manufacturer part number on file: G21149 (National Oilwell Varco Inc Dba National Oilwell).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-488-4161. 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.