The Seal, cataloged under National Stock Number 5330-00-487-5998, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Harper Packing Sales and Engineering, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Seal |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Harper Packing Sales and Engineering, Inc (CAGE 61568) |
| Parameter | Value |
|---|---|
| NSN | 5330-00-487-5998 |
| Primary Part Number | 53-21121-005 |
| Item Name | Seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Harper Packing Sales and Engineering, Inc |
| 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 |
|---|---|
| 53-21121-005 | Harper Packing Sales and Engineering, Inc (USA) |
| Reference | Meaning |
|---|---|
| SEL248 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| SEL248 | 5/9 Secondary reference U.S. Government activity |
| 212-0125-11120-307 | 5/9 Secondary reference Garlock Inc France Compressor Products Div Sub of Colt Industries Inc |
| 212-0125-11120-304 | 5/9 Secondary reference Garlock Inc France Compressor Products Div Sub of Colt Industries Inc |
| SEL248 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
NSN 5330-00-487-5998 is a Seal, manufactured by Harper Packing Sales and Engineering, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-487-5998 has 1 manufacturer part number on file: 53-21121-005 (Harper Packing Sales and Engineering, Inc).
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.