The Seal,plain, cataloged under National Stock Number 5330-01-463-9821, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Clamshell Structures, Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-463-9821 |
| Primary Part Number | 500744 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Clamshell Structures, Inc |
| Status | ACTIVE |
| Color | BLACK |
| Material | RUBBER POLYURETHANE 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 |
|---|---|
| 500744 PRIMARY | Clamshell Structures, Inc (USA) |
NSN 5330-01-463-9821 is a Seal,plain, manufactured by Clamshell Structures, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-463-9821 has 1 manufacturer part number on file: 500744 (Clamshell Structures, Inc).
Key specifications for 500744: Color: BLACK; End Item Identification: 5410-01-463-2855; Material: RUBBER POLYURETHANE 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.