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Technical Data Sheet
MILB5423-9 ✓ 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 BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE BODY, body_height: 0.243 INCHES NOMINAL IN, thread_class: 2B, thread_length: 0.175 INCHES NOMINAL IN, thread_series: UNS, overall_height: 0.219 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-140-3241, 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
MILB5423-9
NSN: 5930-00-140-3241
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER SILICONE BODY
body_height0.243 INCHES NOMINAL IN
thread_class2B
thread_length0.175 INCHES NOMINAL IN
thread_seriesUNS
overall_height0.219 INCHES NOMINAL IN
sealing_methodCOMPRESSION
mounting_methodNUT(S)
special_featuresFSC CHG PER DOUGLAS COMPTON
style_designatorTHRU-HOLE
material_thickness0.005 INCHES NOMINAL IN
width_across_flats0.625 INCHES NOMINAL IN
NSN5930-00-140-3241
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOOT,DUST AND MOISTURE SEAL TITLE COMPONENT PN MILB5423-9 MFR BOOT,DUST AND MOISTURE
KEY FEATURES
STYLE DESIGNATOR: THRU-HOLE
THREAD SERIES: UNEF
FSC APPLICATION DATA: SWITCH,ROTARY.
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.).
BASE THREAD LOCATION: INTERNAL
NOMINAL THREAD SIZE: 0.250 INCHES IN
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
MATERIAL: RUBBER SILICONE BODY
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORTHRU-HOLE
THREAD SERIESUNEF
FSC APPLICATION DATASWITCH,ROTARY.
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.).
BASE THREAD LOCATIONINTERNAL
NOMINAL THREAD SIZE0.250 INCHES IN
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
MATERIALRUBBER SILICONE BODY
THREAD QUANTITY PER INCH32
SPECIFICATION/STANDARD DATA81349-MIL-B-5423/9 GOVERNMENT SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
MILB5423-9Interchangeable
interchangeable cross-reference
interchangeable
M5423/09-11Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-5423/9Interchangeable
interchangeable cross-reference
interchangeable
N9030X1/4RFIInterchangeable
interchangeable cross-reference
interchangeable
M5423/09-08Interchangeable
interchangeable cross-reference
interchangeable
N909U1-4RF1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILB5423-9?
MILB5423-9 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace MILB5423-9?
There are 26 known substitutes for MILB5423-9: MILB5423-9, M5423/09-11, MIL-DTL-5423/9 and 23 more. Substitute compatibility should be verified for your specific system.
Is MILB5423-9 still available?
MILB5423-9 is currently cancelled.
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