The Seal,plain Encased, cataloged under National Stock Number 5330-01-659-8540, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Hose-Mccann Telephone Co, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Seal,plain Encased |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Hose-Mccann Telephone Co, Inc (CAGE 73274) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-659-8540 |
| Primary Part Number | 3290558 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Hose-Mccann Telephone Co, Inc |
| 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 |
|---|---|
| 3290558 PRIMARY | Hose-Mccann Telephone Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| LS-678-DS REV 1 | C/1 Advisory reference — outside the item-of-supply concept Hose-Mccann Telephone Co, Inc |
NSN 5330-01-659-8540 is a Seal,plain Encased, manufactured by Hose-Mccann Telephone Co, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-659-8540 has 1 manufacturer part number on file: 3290558 (Hose-Mccann Telephone Co, Inc).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-659-8546. 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.