The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-509-4923, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-509-4923 |
| Primary Part Number | 515-6985002-7 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 2.060 INCHES NOMINAL IN |
| Opening Inside Diameter for Which Designed | 1.303 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN |
| Material | PLASTIC |
| Round Cap Outside Surface Condition | SMOOTH |
| 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 |
|---|---|
| 515-6985002-7 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H444-060-7 | 5/2 Secondary reference U.S. Government activity |
| 6985002 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5340-01-509-4923 is a Cap,protective,dust and Moisture, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-509-4923 has 1 manufacturer part number on file: 515-6985002-7 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 2990-01-679-4209, 5342-01-714-6060. Verify interchangeability with system specifications before substitution.
Key specifications for 515-6985002-7: Design Type: FRICTION; Overall Diameter: 2.060 INCHES NOMINAL IN; Opening Inside Diameter for Which Designed: 1.303 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN; Material: PLASTIC. 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.