The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-439-3366, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Amphenol Corp Div Amphenol Aerospace Operations. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-439-3366 |
| Primary Part Number | 10-552981-17 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Amphenol Corp Div Amphenol Aerospace Operations |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 1.8750 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Thread Class | 2B |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 10-552981-17 PRIMARY | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
| 660-024Z117S4-04 | Glenair, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1500028-001 | 5/9 Secondary reference Harris-Magnavox Systems Co a Joint Venture |
NSN 5340-01-439-3366 is a Cap,protective,dust and Moisture, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-439-3366 has 2 manufacturer part numbers on file: 10-552981-17 (Amphenol Corp Div Amphenol Aerospace Operations), 660-024Z117S4-04 (Glenair, Inc.).
Key specifications for 10-552981-17: Design Type: THREADED; Overall Diameter: 1.8750 INCHES NOMINAL IN; Surface Treatment: PASSIVATE; Thread Class: 2B. 5 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.