The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-456-2575, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-00-456-2575 |
| Primary Part Number | 155S6-16D |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Width Across Flats | 2.380 INCHES NOMINAL IN |
| Design Type | THREADED |
| Overall Diameter | 1.976 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-BAQQ-A-225/5, ALLOY 2017, T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | ANODIZE |
| Thread Class | 2A A |
| Material | ALUMINUM ALLOY |
| Thread Size and Series/type Designator | 1-7/8-12 UNIFIED NATIONAL COARSE (UNC) |
| Round Cap Outside Surface Condition | SERRATED |
| 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 |
|---|---|
| 155S6-16D PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| U6478 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-00-456-2575 is a Cap,protective,dust and Moisture, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-456-2575 has 1 manufacturer part number on file: 155S6-16D (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for 155S6-16D: Width Across Flats: 2.380 INCHES NOMINAL IN; Design Type: THREADED; Overall Diameter: 1.976 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-BAQQ-A-225/5, ALLOY 2017, T4 FED SPEC SINGLE MATERIAL RESPONSE. 9 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.