The Seal,plain Encased, cataloged under National Stock Number 5330-00-770-4804, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Insinger Machine Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | Seal,plain Encased |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Insinger Machine Co (CAGE 30793) |
| Parameter | Value |
|---|---|
| NSN | 5330-00-770-4804 |
| Primary Part Number | H1871 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Insinger Machine Co |
| 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 |
|---|---|
| H1871 PRIMARY | Insinger Machine Co (USA) |
| 30MMAREVBPC26 | Insinger Machine Co (USA) |
NSN 5330-00-770-4804 is a Seal,plain Encased, manufactured by Insinger Machine Co, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-770-4804 has 2 manufacturer part numbers on file: H1871 (Insinger Machine Co), 30MMAREVBPC26 (Insinger Machine Co).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-573-1056. 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.