The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-531-6780, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Pratt & Whitney Autoair Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-531-6780 |
| Primary Part Number | AD1000-1 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Pratt & Whitney Autoair Inc |
| Status | ACTIVE |
| Design Type | FRICTION |
| Features Provided | BEVELED SEAT AND SHOULDER |
| Opening Inside Diameter for Which Designed | 5.000 INCHES NOMINAL 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 |
|---|---|
| AD1000-1 | Acmt, Inc. (USA) |
| AD1000-1 PRIMARY | Pratt & Whitney Autoair Inc (USA) |
| AD1000-1 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| AP6029-4 | 5/9 Secondary reference Pratt & Whitney Autoair Inc |
| 5340PL2218996 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| AD1000 | 5/9 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| AD1000 | 5/9 Secondary reference Pratt & Whitney Autoair Inc |
NSN 5340-01-531-6780 is a Plug,protective,dust and Moistur, manufactured by Pratt & Whitney Autoair Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-531-6780 has 3 manufacturer part numbers on file: AD1000-1 (Acmt, Inc.), AD1000-1 (Pratt & Whitney Autoair Inc), AD1000-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-632-9551. Verify interchangeability with system specifications before substitution.
Key specifications for AD1000-1: Design Type: FRICTION; Features Provided: BEVELED SEAT AND SHOULDER; Opening Inside Diameter for Which Designed: 5.000 INCHES NOMINAL IN; Special Features: MATERIAL IS PLASTIC WITH FIBERGLASS (PWA404) AND A LANYARD MOLDED INTO TOP CENTER OF PLUG;PLUG IS PRESSED INTO PLACE. SIKORSKY P/N'S AD1000 AND AD1002 ARE FOR H-60 HELICOPTER PILOTS CEILING DRIP PAN P/N 96500-02870-101. TM 1-1520-237-23P-1 FIG 260. 4 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.