The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-180-3525, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 6 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 | 5340-01-180-3525 |
| Primary Part Number | 12321104 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 6.000 INCHES NOMINAL IN |
| Opening Inside Diameter for Which Designed | 4.500 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE |
| Material | STEEL |
| 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 |
|---|---|
| 12321104 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5340-01-180-3525 is a Cap,protective,dust and Moisture, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-180-3525 has 1 manufacturer part number on file: 12321104 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12321104: Design Type: FRICTION; Overall Diameter: 6.000 INCHES NOMINAL IN; Opening Inside Diameter for Which Designed: 4.500 INCHES NOMINAL IN; Special Features: 6 EQUALLY SPACED HOLES 0.281 IN.DIA.; 0.310 IN. THK.; MATERIAL IS PER ASTM A575,1010-1020; OR QQ-S-637,1213-1215,OR 1117; SURFACE TREATMENT IS PERMIL-P-16232,TYPE M,CLASS 3,0.0002 TO 0.0004 IN. THK. IN. 6 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.