The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-666-3312, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Deutsch Engineered Connecting Devices Dba Deutsch Industrial Products Div. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-666-3312 |
| Primary Part Number | HDC9-JDL082397 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Deutsch Engineered Connecting Devices Dba Deutsch Industrial Products Div |
| Status | ACTIVE |
| Width Across Flats | 1.567 INCHES NOMINAL IN |
| Design Type | MOLDED |
| Overall Diameter | 1.828 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 |
|---|---|
| HDC9-JDL082397 PRIMARY | Deutsch Engineered Connecting Devices Dba Deutsch Industrial Products Div (USA) |
| 4171214 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| HDC9-JDL082397 | 3/9 Design control — primary reference Ladd Distribution Llc |
NSN 5340-01-666-3312 is a Cap,protective,dust and Moisture, manufactured by Deutsch Engineered Connecting Devices Dba Deutsch Industrial Products Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-666-3312 has 2 manufacturer part numbers on file: HDC9-JDL082397 (Deutsch Engineered Connecting Devices Dba Deutsch Industrial Products Div), 4171214 (Oshkosh Defense Llc).
Key specifications for HDC9-JDL082397: Overall Height: 2.895 INCHES NOMINAL IN; Width Across Flats: 1.567 INCHES NOMINAL IN; Design Type: MOLDED; Overall Diameter: 1.828 INCHES NOMINAL IN. 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.