The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-291-3537, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-291-3537 |
| Primary Part Number | 77954 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 2 TYPE AND A CLASS AND 4 SIZE |
| Thread Size and Series/type Designator | 7/16-20 UNF |
| 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 |
|---|---|
| 8982268 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 39A33 | Surface Combustion Inc (USA) |
| 132659 | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| 77954 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| 132659 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 5340PL1879930 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 8982268 | 5/9 Secondary reference Associated Aerospace Activities Inc |
NSN 5340-00-291-3537 is a Cap,protective,dust and Moisture, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-291-3537 has 5 manufacturer part numbers on file: 8982268 (Allison Transmission Inc Dba Allison Transmission, Inc), 39A33 (Surface Combustion Inc), 132659 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), 77954 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 132659 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
1 possible match (shared part number, not a government interchangeability claim): 6920-01-722-5536. Verify interchangeability with system specifications before substitution.
Key specifications for 77954: Design Type: THREADED; Overall Diameter: 0.875 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 2 TYPE AND A CLASS AND 4 SIZE; Special Features: RUBBER GASKET INSERTED IN CAP. 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.