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Technical Data Sheet
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M5423/14-03 — Technical Data Sheet

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— · 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 BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE BODY, base_width: 3.156 INCHES NOMINAL IN, overall_width: 3.656 INCHES NOMINAL IN, overall_height: 0.921 INCHES NOMINAL IN, overall_length: 3.718 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-101-7777, 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
M5423/14-03
NSN: 5930-01-101-7777
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER SILICONE BODY
base_width3.156 INCHES NOMINAL IN
overall_width3.656 INCHES NOMINAL IN
overall_height0.921 INCHES NOMINAL IN
overall_length3.718 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
style_designatorTHRU-HOLE
features_providedCOMPONENT SWITCH
base_overall_length2.000 INCHES NOMINAL IN
mounting_hole_diameter0.160 INCHES NOMINAL IN
specification/standard_data81349-MIL-B-5423/14 GOVERNMENT SPECIFICATION
distance_from_inside_opening_to_base_edge0.750 INCHES NOMINAL IN
NSN5930-01-101-7777
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOOT,DUST AND MOISTURE SEAL TITLE COMPONENT PN M5423/14-03 MFR BOOT,DUST AND MOISTURE
KEY FEATURES
•
BASE OVERALL LENGTH: 2.000 INCHES NOMINAL IN
•
DISTANCE FROM INSIDE OPENING TO BASE EDGE: 0.750 INCHES NOMINAL IN
•
TEST DATA DOCUMENT: 81349-MIL-B-5423 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.).
•
STYLE DESIGNATOR: THRU-HOLE
•
SPECIFICATION/STANDARD DATA: 81349-MIL-B-5423/14 GOVERNMENT SPECIFICATION
•
MATERIAL: RUBBER SILICONE BODY
•
MOUNTING METHOD: UNTHREADED HOLE(S)
•
BASE WIDTH: 3.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BASE OVERALL LENGTH2.000 INCHES NOMINAL IN
DISTANCE FROM INSIDE OPENING TO BASE EDGE0.750 INCHES NOMINAL IN
TEST DATA DOCUMENT81349-MIL-B-5423 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.).
STYLE DESIGNATORTHRU-HOLE
SPECIFICATION/STANDARD DATA81349-MIL-B-5423/14 GOVERNMENT SPECIFICATION
MATERIALRUBBER SILICONE BODY
MOUNTING METHODUNTHREADED HOLE(S)
BASE WIDTH3.156 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH2.062 INCHES NOMINAL IN
FEATURES PROVIDEDCOMPONENT SWITCH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
HE-1015Interchangeable
interchangeable cross-reference
interchangeable
10197289Interchangeable
interchangeable cross-reference
interchangeable
M5423/14-05Interchangeable
interchangeable cross-reference
interchangeable
HE1040Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-5423/14Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-5423/14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M5423/14-03?
M5423/14-03 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace M5423/14-03?
There are 13 known substitutes for M5423/14-03: HE-1015, 10197289, M5423/14-05 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M5423/14-03?
M5423/14-03 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-101-7777. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026