The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-656-0401, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Glenair, Inc.. Government technical data includes 5 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-656-0401 |
| Primary Part Number | D38999/33M15R |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Glenair, Inc. |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 1.178 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Connector Nominal Thread Size for Which Designed | 1.00 INCHES IN |
| Surface Treatment | NICKEL |
| Round Cap Outside Surface Condition | KNURLED |
| 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 |
|---|---|
| D38999/33M15R PRIMARY | Glenair, Inc. (USA) |
NSN 5340-01-656-0401 is a Cap,protective,dust and Moisture, manufactured by Glenair, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-656-0401 has 1 manufacturer part number on file: D38999/33M15R (Glenair, Inc.).
Key specifications for D38999/33M15R: Overall Height: 0.906 INCHES NOMINAL IN; Design Type: THREADED; Overall Diameter: 1.178 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN; Connector Nominal Thread Size for Which Designed: 1.00 INCHES IN. 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.