PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21057Switch,rotary

Ocean Technology Inc · NSN 5930-01-089-5163 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-089-5163 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-089-5163. Primary manufacturer part number: 21057.
Features
  • Switch,rotary — FSC 5930
  • Contact Load Current Rating: 75.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
  • Contact Load Current Rating: 125.0 MILLIAMPERES RESISTIVE LOAD AND 50.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL
  • Style Designator: TAP, CIRCULAR, BUSHING MOUNT
  • Nonturn Device Type: FLATTED BUSHING AT 9:00 OCLOCK
  • Pole Quantity: 1 SINGLE SECTION FRONT
  • Shaft Flat/slot Angular Location: 195.0 DEGREES FROM NONTURN DEVICE SINGLE ACTUATOR
  • Shaft Diameter: 0.125 INCHES NOMINAL SINGLE ACTUATOR IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-01-089-5163, 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 Ocean Technology Inc. Government technical data includes 29 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: Active.

Technical Specifications
ParameterValue
NSN5930-01-089-5163
Primary Part Number21057
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerOcean Technology Inc
StatusACTIVE
Contact Load Current Rating75.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
Contact Load Current Rating125.0 MILLIAMPERES RESISTIVE LOAD AND 50.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Nonturn Device TypeFLATTED BUSHING AT 9:00 OCLOCK
Pole Quantity1 SINGLE SECTION FRONT
Shaft Flat/slot Angular Location195.0 DEGREES FROM NONTURN DEVICE SINGLE ACTUATOR
Shaft Diameter0.125 INCHES NOMINAL SINGLE ACTUATOR IN
Nominal Thread Size0.250 INCHES SINGLE MOUNTING FACILITY IN
Test Data Document81349-MIL-R-3786 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Nonturn Device TypeFLATTED BUSHING AT 3:00 OCLOCK
Contact Voltage Rating in Volts115.0 AC AT SEA LEVEL
Individual Section Quantity1
Overall Diameter0.670 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
Thread Length0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Switch Actuator Indexing Position Quantity9 SINGLE ACTUATOR
Flat Height0.094 INCHES NOMINAL SINGLE ACTUATOR IN
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Mounting MethodTHREADED BUSHING WITH PANEL SEAL SINGLE MOUNTING FACILITY
Terminal TypeTAB, SOLDER LUG
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Thread Class2A SINGLE MOUNTING FACILITY A
Operating Temp Range-65.0 TO 125.0 CELSIUS DEGC
Shaft Length0.375 INCHES NOMINAL SINGLE ACTUATOR IN
Hazardous Locations/environmental ProtectionEXPLOSION PROOF
Throw Quantity9 SINGLE SECTION REAR
Contact Voltage Rating in Volts28.0 DC AT SEA LEVEL
Rotor Through Connection Quantity1 SINGLE SECTION
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3040-00-463-5261 INTERCHANGEABLE
Shaft,shouldered
5905-00-816-4311210-57 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Keysight Technologies Inc
5330-01-168-5401 INTERCHANGEABLE
Seal
6140-01-238-4932 INTERCHANGEABLE
Battery Assembly
4810-01-305-316021057 INTERCHANGEABLE
Rack,actuator
Parker Hannifin Corp Dba Pneutronics
5895-01-407-764021057 INTERCHANGEABLE
Modem Assembly,communications
Motorola/codex Corp Sub of Motorola Inc
5310-01-481-5763 INTERCHANGEABLE
Nut,plain,hexagon
4820-01-519-660821057-001 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
1005-01-601-558121057 INTERCHANGEABLE
Buffer Assembly,recoil
Charles Reed Knight Jr Dba Knight's Armament Company
5325-01-689-4058 INTERCHANGEABLE
Fastener Tape,hook and Pile
Cross-Reference Index
Part NumberManufacturer
21057 Ocean Technology Inc (USA)
MIL-S-3786/13 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-3786/13 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M3786/13-5008 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3040-00-463-5261INTERCHANGEABLE
SHAFT,SHOULDERED
5905-00-816-4311INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
210-57
5330-01-168-5401INTERCHANGEABLE
SEAL
6140-01-238-4932INTERCHANGEABLE
BATTERY ASSEMBLY
4810-01-305-3160INTERCHANGEABLE
RACK,ACTUATOR
21057
5895-01-407-7640INTERCHANGEABLE
MODEM ASSEMBLY,COMMUNICATIONS
21057
5310-01-481-5763INTERCHANGEABLE
NUT,PLAIN,HEXAGON
4820-01-519-6608INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
21057-001
1005-01-601-5581INTERCHANGEABLE
BUFFER ASSEMBLY,RECOIL
21057
5325-01-689-4058INTERCHANGEABLE
FASTENER TAPE,HOOK AND PILE

Frequently Asked Questions

What is NSN 5930-01-089-5163?

NSN 5930-01-089-5163 is a Switch,rotary, manufactured by Ocean Technology Inc, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-089-5163?

NSN 5930-01-089-5163 has 4 cross-referenced part numbers: 21057 (Ocean Technology Inc), MIL-S-3786/13 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-3786/13 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M3786/13-5008 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5930-01-089-5163?

There are 10 known substitutes for 5930-01-089-5163: 3040-00-463-5261, 5905-00-816-4311, 5330-01-168-5401 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21057?

Key specifications for 21057: Contact Load Current Rating: 75.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL; Contact Load Current Rating: 125.0 MILLIAMPERES RESISTIVE LOAD AND 50.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL; Style Designator: TAP, CIRCULAR, BUSHING MOUNT; Nonturn Device Type: FLATTED BUSHING AT 9:00 OCLOCK. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com