The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-134-5988, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-134-5988 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 6.505 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 6.415 INCHES MINIMUM AND 6.445 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-250/1, T 0 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | CHROMATE |
| Material | ALUMINUM ALLOY |
| Inside Diameter Length | 0.185 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| 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 |
| Reference | Meaning |
|---|---|
| 5004846 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-134-5988 is a Cap,protective,dust and Moisture, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5998-01-245-5860. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-134-5988: Design Type: FRICTION; Overall Diameter: 6.505 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 6.415 INCHES MINIMUM AND 6.445 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-250/1, T 0 FED SPEC SINGLE MATERIAL RESPONSE. 8 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.