The Detent,switch, cataloged under National Stock Number 5930-00-548-5004, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is General Dynamics Mission Systems, Inc. Dba Gdms. Government technical data includes 11 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5930-00-548-5004 |
| Primary Part Number | 340A3990 |
| Item Name | Detent,switch |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | General Dynamics Mission Systems, Inc. Dba Gdms |
| Status | ACTIVE |
| Bushing Length | 0.375 INCHES NOMINAL IN |
| Mounting Method | BUSHING |
| Switch Position Quantity | 6 |
| Stop Adjustability | NONADJUSTABLE |
| Shaft Length | 0.250 INCHES NOMINAL IN |
| Bushing Diameter | 0.375 INCHES NOMINAL IN |
| Positioning Increments in Deg | 30.0 |
| Shaft Width | 0.186 INCHES MAXIMUM IN |
| Mounting Threads Per Inch | 32 |
| Distance From Shaft End to Mounting Surface | 0.500 INCHES IN |
| Nominal Size | 0.250 INCHES FRONT END IN |
| 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 |
|---|---|
| 340A3990 PRIMARY | General Dynamics Mission Systems, Inc. Dba Gdms (USA) |
| Reference | Meaning |
|---|---|
| SM-B-249227 | 3/2 Design control — primary reference U.S. Government activity |
| PS028 | 5/9 Secondary reference Crl Components Inc |
| 340A3990 | 5/9 Secondary reference U.S. Government activity |
| 269-1721-00 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5930-00-548-5004 is a Detent,switch, manufactured by General Dynamics Mission Systems, Inc. Dba Gdms, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-548-5004 has 1 manufacturer part number on file: 340A3990 (General Dynamics Mission Systems, Inc. Dba Gdms).
1 possible match (shared part number, not a government interchangeability claim): 4240-01-378-4540. Verify interchangeability with system specifications before substitution.
Key specifications for 340A3990: Bushing Length: 0.375 INCHES NOMINAL IN; Overall Height: 1.500 INCHES NOMINAL IN; Mounting Method: BUSHING; Switch Position Quantity: 6. 11 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.