PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4MLWSwitch,rotary

Standard Gribsby Inc · NSN 5930-00-248-6220 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-248-6220 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-248-6220. Primary manufacturer part number: 4MLW.
Features
  • Switch,rotary — FSC 5930
  • Thread Series Designator: UNEF SINGLE MOUNTING FACILITY
  • Throw Quantity: 2 SINGLE SECTION FRONT
  • Contact Switching Action: MAKES BEFORE BREAKS SINGLE SECTION FRONT
  • Style Designator: CIRCULAR WAFER, BUSHING MOUNT
  • Switch Actuator Indexing Position Quantity: 3 SINGLE ACTUATOR
  • Pole Quantity: 1 SINGLE SECTION FRONT
  • Switch Actuator Positioning Increment: 30.0 DEGREES SINGLE ACTUATOR
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-248-6220, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5930-00-248-6220
Primary Part Number4MLW
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerStandard Gribsby Inc
StatusCANCELLED
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Throw Quantity2 SINGLE SECTION FRONT
Contact Switching ActionMAKES BEFORE BREAKS SINGLE SECTION FRONT
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Switch Actuator Indexing Position Quantity3 SINGLE ACTUATOR
Pole Quantity1 SINGLE SECTION FRONT
Switch Actuator Positioning Increment30.0 DEGREES SINGLE ACTUATOR
Terminal TypeTAB, SOLDER LUG
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Shaft TypeROUND SINGLE ACTUATOR
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY IN
Pole Quantity1 SINGLE SECTION REAR
Shaft Length3.500 INCHES NOMINAL SINGLE ACTUATOR IN
Individual Section Quantity1
Thread Length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Contact Switching ActionMAKES BEFORE BREAKS SINGLE SECTION REAR
Throw Quantity2 SINGLE SECTION REAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5930-00-248-6222B4222-4MLW1REVB INTERCHANGEABLE
Switch,rotary
Master Products Mfg Co
5930-00-251-9309A3952-4MLW1 INTERCHANGEABLE
Switch,rotary
Standard Gribsby Inc
5930-00-538-6648600876-111 INTERCHANGEABLE
Switch,rotary
Lockheed Martin Corporation Div Rms - Mitchel Field
5930-00-548-365952013-4MLR-4 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5930-00-548-3661 INTERCHANGEABLE
Switch,rotary
5930-00-552-8934601263-303 INTERCHANGEABLE
Switch,rotary
Lockheed Martin Corporation Div Rms - Mitchel Field
5930-00-583-2290 INTERCHANGEABLE
Switch,rotary
5930-00-644-2929 INTERCHANGEABLE
Switch,rotary
5930-00-817-35272031141-203 INTERCHANGEABLE
Switch,rotary
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-00-870-4080600441-105REVB INTERCHANGEABLE
Switch,rotary
Lockheed Martin Corporation Div Rms - Mitchel Field
Cross-Reference Index
Part NumberManufacturer
4MLW Standard Gribsby Inc (USA)
SWR049 Measurement Specialties Inc (USA)
36203-4MLR1 Standard Gribsby Inc (USA)
4MIW Standard Gribsby Inc (USA)
Related Parts
5930-00-248-6222INTERCHANGEABLE
SWITCH,ROTARY
B4222-4MLW1REVB
5930-00-251-9309INTERCHANGEABLE
SWITCH,ROTARY
A3952-4MLW1
5930-00-538-6648INTERCHANGEABLE
SWITCH,ROTARY
600876-111
5930-00-548-3659INTERCHANGEABLE
SWITCH,ROTARY
52013-4MLR-4
5930-00-548-3661INTERCHANGEABLE
SWITCH,ROTARY
5930-00-552-8934INTERCHANGEABLE
SWITCH,ROTARY
601263-303
5930-00-583-2290INTERCHANGEABLE
SWITCH,ROTARY
5930-00-644-2929INTERCHANGEABLE
SWITCH,ROTARY
5930-00-817-3527INTERCHANGEABLE
SWITCH,ROTARY
2031141-203
5930-00-870-4080INTERCHANGEABLE
SWITCH,ROTARY
600441-105REVB

Frequently Asked Questions

What is NSN 5930-00-248-6220?

NSN 5930-00-248-6220 is a Switch,rotary, manufactured by Standard Gribsby Inc, classified under FSC 5930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5930-00-248-6220?

NSN 5930-00-248-6220 has 4 cross-referenced part numbers: 4MLW (Standard Gribsby Inc), SWR049 (Measurement Specialties Inc), 36203-4MLR1 (Standard Gribsby Inc), 4MIW (Standard Gribsby Inc).

What NSN replaces 5930-00-248-6220?

There are 10 known substitutes for 5930-00-248-6220: 5930-00-248-6222, 5930-00-251-9309, 5930-00-538-6648 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4MLW?

Key specifications for 4MLW: Thread Series Designator: UNEF SINGLE MOUNTING FACILITY; Overall Height: 1.625 INCHES NOMINAL IN; Throw Quantity: 2 SINGLE SECTION FRONT; Contact Switching Action: MAKES BEFORE BREAKS SINGLE SECTION FRONT. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5930-00-248-6220 still in active supply?

NSN 5930-00-248-6220 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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