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PartsTable / COMPONENT / SM-B-50539S
SM-B-50539S ✓ 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, dome_height: 0.203 INCHES NOMINAL IN, thread_class: 2B, thread_length: 0.072 INCHES NOMINAL IN, thread_series: UNS, overall_height: 0.327 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-893-1928, 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
SM-B-50539S
NSN: 5930-00-893-1928
FSC: 5930
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialRUBBER SILICONE BODY
dome_height0.203 INCHES NOMINAL IN
thread_class2B
thread_length0.072 INCHES NOMINAL IN
thread_seriesUNS
overall_height0.327 INCHES NOMINAL IN
mounting_methodINTEGRAL THREADED NUT
style_designatorCLOSED END
material_thickness0.039 INCHES NOMINAL IN
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
base_thread_locationINTERNAL
NSN5930-00-893-1928
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOOT,DUST AND MOISTURE SEAL TITLE COMPONENT PN SM-B-50539S MFR BOOT,DUST AND MOISTURE
KEY FEATURES
•
BASE THREAD LOCATION: INTERNAL
•
MATERIAL THICKNESS: 0.039 INCHES NOMINAL IN
•
MOUNTING DEVICE QUANTITY: 1
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
MOUNTING METHOD: INTEGRAL THREADED NUT
•
STYLE DESIGNATOR: CLOSED END
•
DOME HEIGHT: 0.203 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER: 0.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BASE THREAD LOCATIONINTERNAL
MATERIAL THICKNESS0.039 INCHES NOMINAL IN
MOUNTING DEVICE QUANTITY1
NOMINAL THREAD SIZE0.250 INCHES IN
MOUNTING METHODINTEGRAL THREADED NUT
STYLE DESIGNATORCLOSED END
DOME HEIGHT0.203 INCHES NOMINAL IN
OPENING INSIDE DIAMETER0.187 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
MATERIALRUBBER SILICONE BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
MILB5423-10Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-5423/10Interchangeable
interchangeable cross-reference
interchangeable
9135265Interchangeable
interchangeable cross-reference
interchangeable
38633Interchangeable
interchangeable cross-reference
interchangeable
M5423-/10-10Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-5423Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-50539S?
SM-B-50539S is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace SM-B-50539S?
There are 12 known substitutes for SM-B-50539S: MILB5423-10, MIL-DTL-5423/10, 9135265 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-50539S?
SM-B-50539S is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-893-1928. 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