The Cap-Plug,protective,dust and Moi, cataloged under National Stock Number 5340-00-421-7976, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Nyltite Corp of America. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-421-7976 |
| Primary Part Number | 6S1 |
| Item Name | Cap-Plug,protective,dust and Moi |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Nyltite Corp of America |
| Status | ACTIVE |
| Closed End Overall Diameter | 0.164 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 6S1 PRIMARY | Nyltite Corp of America (USA) |
| Reference | Meaning |
|---|---|
| 86-805348-1 | 5/9 Secondary reference General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
NSN 5340-00-421-7976 is a Cap-Plug,protective,dust and Moi, manufactured by Nyltite Corp of America, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-421-7976 has 1 manufacturer part number on file: 6S1 (Nyltite Corp of America).
1 possible match (shared part number, not a government interchangeability claim): 5915-01-225-5297. Verify interchangeability with system specifications before substitution.
Key specifications for 6S1: Closed End Overall Diameter: 0.164 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN; Material: PLASTIC. 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.