The Boot,dust and Moisture Seal, cataloged under National Stock Number 5930-01-406-7925, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Nkk Switches of America Inc. Government technical data includes 4 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-406-7925 |
| Primary Part Number | AT4043 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Nkk Switches of America Inc |
| Status | ACTIVE |
| Opening Inside Diameter | 0.378 INCHES NOMINAL IN |
| Style Designator | THRU-HOLE |
| Base Outside Diameter | 0.709 INCHES NOMINAL IN |
| Material | RUBBER SILICONE BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AT4043 PRIMARY | Nkk Switches of America Inc (USA) |
NSN 5930-01-406-7925 is a Boot,dust and Moisture Seal, manufactured by Nkk Switches of America Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-406-7925 has 1 manufacturer part number on file: AT4043 (Nkk Switches of America Inc).
1 possible match (shared part number, not a government interchangeability claim): 5133-01-429-5860. Verify interchangeability with system specifications before substitution.
Key specifications for AT4043: Overall Height: 0.421 INCHES NOMINAL IN; Opening Inside Diameter: 0.378 INCHES NOMINAL IN; Style Designator: THRU-HOLE; Base Outside Diameter: 0.709 INCHES NOMINAL IN. 4 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.