The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-190-0797, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Pacific Scientific Energetic Materials Company (california Llc). Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-190-0797 |
| Primary Part Number | 812516-4 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Pacific Scientific Energetic Materials Company (california Llc) |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 0.500 INCHES NOMINAL IN |
| Material Document and Classification | L-P-390, TYPE 1, CLASS M, GRADE 3 FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Class | 1B |
| Material | PLASTIC, POLYETHYLENE (PP) |
| Thread Size and Series/type Designator | 0.375-24 UNF |
| Inside Diameter Length | 0.850 INCHES NOMINAL IN |
| Round Cap Outside Surface Condition | RIBBED OR 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 |
NSN 5340-01-190-0797 is a Cap,protective,dust and Moisture, manufactured by Pacific Scientific Energetic Materials Company (california Llc), classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-190-0797 has 2 manufacturer part numbers on file: 812516-4 (Pacific Scientific Energetic Materials Company (california Llc)), 22277-1 (Rockwell Collins Inc).
Key specifications for 812516-4: Design Type: THREADED; Overall Diameter: 0.500 INCHES NOMINAL IN; Material Document and Classification: L-P-390, TYPE 1, CLASS M, GRADE 3 FED SPEC SINGLE MATERIAL RESPONSE; Thread Class: 1B. 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.