The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-099-9435, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mine Safety Appliances Company. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Mine Safety Appliances Company (CAGE 55799); American Precision Gear Company Dba American Precision Gear Co Div Same (CAGE 18131) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-099-9435 |
| Primary Part Number | 59686 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 59686 PRIMARY | Mine Safety Appliances Company (USA) |
| 43A10577 | American Precision Gear Company Dba American Precision Gear Co Div Same (USA) |
| Reference | Meaning |
|---|---|
| 43A10577 | 5/9 Secondary reference Aero Customs Inc |
| 43A10577-9 | 5/9 Secondary reference Aero Customs Inc |
NSN 5340-01-099-9435 is a Cap,protective,dust and Moisture, manufactured by Mine Safety Appliances Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-099-9435 has 2 manufacturer part numbers on file: 59686 (Mine Safety Appliances Company), 43A10577 (American Precision Gear Company Dba American Precision Gear Co Div Same).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-301-7772. Verify interchangeability with system specifications before substitution.
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.