The Switch,knife, cataloged under National Stock Number 5930-01-384-1809, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Filnor Inc. Government technical data includes 6 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. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-384-1809 |
| Primary Part Number | A-1109 |
| Item Name | Switch,knife |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Filnor Inc |
| Status | ACTIVE |
| Body Style | HOLE MOUNTED |
| Body Width | 7.000 INCHES NOMINAL IN |
| Body Length | 13.500 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 2 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT |
| Maximum Voltage Rating in Volts | 250.0 DC AND 480.0 AC |
| Contact Load Current Rating at Maximum Rated Voltage | 400.000 AMPERES RESISTIVE DC AND 400.000 AMPERES RESISTIVE AC |
| 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 |
|---|---|
| 1109 DWG 5741 | Filnor Inc (USA) |
| A-1109 PRIMARY | Filnor Inc (USA) |
NSN 5930-01-384-1809 is a Switch,knife, manufactured by Filnor Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-384-1809 has 2 manufacturer part numbers on file: 1109 DWG 5741 (Filnor Inc), A-1109 (Filnor Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4310-01-413-3559, 8455-01-528-8843, 8455-01-648-3384. Verify interchangeability with system specifications before substitution.
Key specifications for A-1109: Body Style: HOLE MOUNTED; Body Width: 7.000 INCHES NOMINAL IN; Body Length: 13.500 INCHES NOMINAL IN; Nonpile-Up Contact Arrangement: 2 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT. 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.