The Switch,rotary, cataloged under National Stock Number 5930-00-251-9309, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Standard Gribsby Inc. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-251-9309 |
| Primary Part Number | A3952-4MLW1 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — No Item Name Available |
| Manufacturer | Standard Gribsby Inc |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SINGLE ACTUATOR |
| Thread Series Designator | UNEF SINGLE MOUNTING FACILITY |
| First Flat Length | 0.375 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL |
| Precious Material and Location | CONTACTS AND ROTOR BLADE SURFACES SILVER |
| Contact Load Current Rating | 1.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Throw Quantity | 2 SINGLE SECTION FRONT |
| Style Designator | CIRCULAR WAFER, BUSHING MOUNT |
| Precious Material | SILVER |
| Thread Length | 0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Flat Height | 0.188 INCHES NOMINAL SINGLE ACTUATOR IN |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Shaft Length | 0.875 INCHES NOMINAL SINGLE ACTUATOR IN |
| Pole Quantity | 1 SINGLE SECTION FRONT |
| Contact Switching Action | MAKES BEFORE BREAKS SINGLE SECTION REAR |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Diameter | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Overall Diameter | 1.852 INCHES NOMINAL IN |
| Switch Actuator Stop Device Type | FIXED STOP SINGLE ACTUATOR |
| Individual Section Quantity | 1 |
| Contact Voltage Rating in Volts | 110.0 AC AT SEA LEVEL |
| Terminal Type | TAB, SOLDER LUG |
| Switch Actuator Indexing Position Quantity | 2 SINGLE ACTUATOR |
| Switch Actuator Positioning Increment | 30.0 DEGREES SINGLE ACTUATOR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 127145DH1 | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
| A3952-4MLW1 PRIMARY | Standard Gribsby Inc (USA) |
| 4MLW | Standard Gribsby Inc (USA) |
| TC332 | Telectro Systems Corp |
NSN 5930-00-251-9309 is a Switch,rotary, manufactured by Standard Gribsby Inc, classified under FSC 5930 (No Item Name Available). Status: active.
NSN 5930-00-251-9309 has 4 cross-referenced part numbers: 127145DH1 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), A3952-4MLW1 (Standard Gribsby Inc), 4MLW (Standard Gribsby Inc), TC332 (Telectro Systems Corp).
There are 11 known substitutes for 5930-00-251-9309: 5930-00-248-6220, 5930-00-248-6222, 3040-00-301-6374 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for A3952-4MLW1: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Thread Series Designator: UNEF SINGLE MOUNTING FACILITY; First Flat Length: 0.375 INCHES NOMINAL SINGLE ACTUATOR IN; Overall Length: 2.157 INCHES NOMINAL IN. 28 total characteristics are documented in the Federal Logistics Information System.