PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27993-4Switch,sensitive

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-00-124-0056 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-124-0056 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-124-0056. Primary manufacturer part number: MS27993-4.
Features
  • Switch,sensitive — FSC 5930
  • Actuator Style: ROUND
  • Nonpile-Up Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
  • Switch Release Force: 6.0 OUNCES MINIMUM OZ
  • Switch Actuating Force: 22.0 OUNCES MAXIMUM OZ
  • Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
  • Actuator Free Position Height: 0.446 INCHES MAXIMUM IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,sensitive, cataloged under National Stock Number 5930-00-124-0056, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-124-0056
Primary Part NumberMS27993-4
Item NameSwitch,sensitive
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Actuator StyleROUND
Nonpile-Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
Switch Release Force6.0 OUNCES MINIMUM OZ
Switch Actuating Force22.0 OUNCES MAXIMUM OZ
Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Center to Center Distance Between Mounting Facilities Parallel to Length0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Actuator Free Position Height0.446 INCHES MAXIMUM IN
Unthreaded Mounting Hole Diameter0.084 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
Mounting MethodTHREADED HOLE(S)
Body StyleHOLE MOUNTED
Contact Load Current Rating at Maximum Rated Voltage5.000 AMPERES RESISTIVE DC AND 3.000 AMPERES INDUCTIVE DC AND 3.000 AMPERES LAMP DC AND 5.000 AMPERES RESISTIVE AC AND 3.000 AMPERES INDUCTIVE AC AND 3.000 AMPERES LAMP AC
Inclosure TypeFULLY INCLOSED
Body Height0.490 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
Test Data Document81349-MIL-PRF-8805 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.).
Terminal Type and Quantity3 TAB, SOLDER LUG
Body Width0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-197-2289 INTERCHANGEABLE
Switch,sensitive
5930-00-758-5333 INTERCHANGEABLE
Switch,sensitive
5930-00-764-2076 INTERCHANGEABLE
Switch,sensitive
5930-00-868-4222 INTERCHANGEABLE
Switch,sensitive
5930-01-015-0025 INTERCHANGEABLE
Switch,push
5930-01-264-7888 INTERCHANGEABLE
Switch,sensitive
5930-01-464-6290 INTERCHANGEABLE
Switch,push
5930-01-492-5652 INTERCHANGEABLE
Switch,toggle
5930-01-535-3485 INTERCHANGEABLE
Switch,toggle
5930-01-558-8845 INTERCHANGEABLE
Switch,push
Cross-Reference Index
Part NumberManufacturer
MS27993-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27993-4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-8805/45 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-8805 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5930-00-197-2289INTERCHANGEABLE
SWITCH,SENSITIVE
5930-00-758-5333INTERCHANGEABLE
SWITCH,SENSITIVE
5930-00-764-2076INTERCHANGEABLE
SWITCH,SENSITIVE
5930-00-868-4222INTERCHANGEABLE
SWITCH,SENSITIVE
5930-01-015-0025INTERCHANGEABLE
SWITCH,PUSH
5930-01-264-7888INTERCHANGEABLE
SWITCH,SENSITIVE
5930-01-464-6290INTERCHANGEABLE
SWITCH,PUSH
5930-01-492-5652INTERCHANGEABLE
SWITCH,TOGGLE
5930-01-535-3485INTERCHANGEABLE
SWITCH,TOGGLE
5930-01-558-8845INTERCHANGEABLE
SWITCH,PUSH
5930-01-573-6842INTERCHANGEABLE
SWITCH,PUSH
5930-01-612-4845INTERCHANGEABLE
SWITCH,TOGGLE

Frequently Asked Questions

What is NSN 5930-00-124-0056?

NSN 5930-00-124-0056 is a Switch,sensitive, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-124-0056?

NSN 5930-00-124-0056 has 4 cross-referenced part numbers: MS27993-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS27993-4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-8805/45 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-8805 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5930-00-124-0056?

There are 12 known substitutes for 5930-00-124-0056: 5930-00-197-2289, 5930-00-758-5333, 5930-00-764-2076 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27993-4?

Key specifications for MS27993-4: Actuator Style: ROUND; Nonpile-Up Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT; Switch Release Force: 6.0 OUNCES MINIMUM OZ; Switch Actuating Force: 22.0 OUNCES MAXIMUM OZ. 17 total characteristics are documented in the Federal Logistics Information System.

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