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PartsTable / COMPONENT / MS27903-4
MS27903-4 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SWITCH,PUSH is a the manufacturer industrial component. Key specifications include color: RED SINGLE ACTUATOR, body_style: BUSHING MOUNTED, body_length: 0.760 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN, thread_class: 2A A, body_diameter: 0.630 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN, actuator_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-977-2710, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MS27903-4
NSN: 5930-00-977-2710
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
colorRED SINGLE ACTUATOR
body_styleBUSHING MOUNTED
body_length0.760 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
thread_class2A A
body_diameter0.630 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN
actuator_styleROUND
bushing_length0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
actuator_height0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
mounting_methodTHREADED BUSHING
actuator_diameter0.355 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
NSN5930-00-977-2710
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PUSH TITLE COMPONENT PN MS27903-4 MFR SWITCH,PUSH
KEY FEATURES
•
BODY LENGTH: 0.760 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
•
BUSHING LENGTH: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
•
ACTUATOR STYLE: ROUND
•
NONPILE-UP CONTACT ARRANGEMENT: 2 TWO CIRCUIT, DOUBLE BREAK/DOUBLE MAKE, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
TEST DATA DOCUMENT: 81349-MIL-S-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.).
•
COLOR: RED SINGLE ACTUATOR
•
NONDEFINITIVE SPEC/STD DATA: G TYPE
TECHNICAL CHARACTERISTICS (FLIS)
BODY LENGTH0.760 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
BUSHING LENGTH0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
ACTUATOR STYLEROUND
NONPILE-UP CONTACT ARRANGEMENT2 TWO CIRCUIT, DOUBLE BREAK/DOUBLE MAKE, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
NOMINAL THREAD SIZE0.625 INCHES IN
TEST DATA DOCUMENT81349-MIL-S-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.).
COLORRED SINGLE ACTUATOR
NONDEFINITIVE SPEC/STD DATAG TYPE
TERMINAL TYPE AND QUANTITY8 TAB, SOLDER LUG
SPECIFICATION/STANDARD DATA81349-MIL-PRF-8805/38 GOVERNMENT SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
MS27903-1FInterchangeable
interchangeable cross-reference
interchangeable
MS27903-05Interchangeable
interchangeable cross-reference
interchangeable
MILS6743Interchangeable
interchangeable cross-reference
interchangeable
946893-2Interchangeable
interchangeable cross-reference
interchangeable
MS27903-2Interchangeable
interchangeable cross-reference
interchangeable
870PU0010Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27903-4?
MS27903-4 is a SWITCH,PUSH.
What parts can replace MS27903-4?
There are 14 known substitutes for MS27903-4: MS27903-1F, MS27903-05, MILS6743 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS27903-4?
MS27903-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-977-2710. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026