The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-00-689-9288, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div Communication Systems-East. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-689-9288 |
| Primary Part Number | 8773921-509 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | L3 Technologies, Inc. Div Communication Systems-East |
| Status | ACTIVE |
| Design Type | FRICTION |
| Features Provided | GASKET AND SHOULDER |
| Material | RUBBER |
| 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 |
|---|---|
| 8501747-501 | Spencer Industries Inc (USA) |
| A7228 | Autodyne Manufacturing Co Inc (USA) |
| 8773921-509 PRIMARY | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| 8501747-501 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| Reference | Meaning |
|---|---|
| 8501747-501 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| 8501747-501 | 5/9 Secondary reference Valcore Manufacturing Llc Dba Use CAGE Code 04ye2 for Cataloging |
NSN 5340-00-689-9288 is a Plug,protective,dust and Moistur, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-689-9288 has 4 manufacturer part numbers on file: 8501747-501 (Spencer Industries Inc), A7228 (Autodyne Manufacturing Co Inc), 8773921-509 (L3 Technologies, Inc. Div Communication Systems-East), 8501747-501 (L3 Technologies, Inc. Div Communication Systems-East).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-994-7228. Verify interchangeability with system specifications before substitution.
Key specifications for 8773921-509: Design Type: FRICTION; Features Provided: GASKET AND SHOULDER; Special Features: RUBBER CENTER OF ITEM EXPAND WHEN COMPRESSED TO HOLE ITEM IN PLACE; Material: RUBBER. 3 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.