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Technical Data Sheet
PartsTable / MRO / SM-B-171558
SM-B-171558 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 KEYTOP,KEYBOARD is a the manufacturer industrial component. Key specifications include locknut: INCLUDED, shaft_type: THREADED, body_height: 2.750 INCHES MAXIMUM IN, felt_washer: NOT INCLUDED, thread_size: 5/16-18, gaging_range: +9.000 TO 12.000 INCHES 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 5815-00-356-3408, 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
MRO→ MRO_GENERAL→ SM-B-171558
NSN: 5815-00-356-3408
FSC: 5815
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
locknutINCLUDED
shaft_typeTHREADED
body_height2.750 INCHES MAXIMUM IN
felt_washerNOT INCLUDED
thread_size5/16-18
gaging_range+9.000 TO 12.000 INCHES IN
linkage_typeSHAFT
ratchet_stopINCLUDED
overall_width3.125 INCHES NOMINAL IN
thread_length1.000 INCHES IN
inclosure_typeOPEN
overall_length36.000 INCHES NOMINAL IN
NSN5815-00-356-3408
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available KEYTOP,KEYBOARD TITLE COMPONENT PN SM-B-171558 MFR KEYTOP,KEYBOARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
05-0012-9400Interchangeable
interchangeable cross-reference
interchangeable
224CRLZInterchangeable
interchangeable cross-reference
interchangeable
5210-00-287-3337Interchangeable
interchangeable cross-reference
interchangeable
50778Interchangeable
interchangeable cross-reference
interchangeable
PEI 7589Interchangeable
interchangeable cross-reference
interchangeable
10080Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-171558?
SM-B-171558 is a KEYTOP,KEYBOARD. It is classified as a MRO (MRO_GENERAL).
What parts can replace SM-B-171558?
There are 11 known substitutes for SM-B-171558: 05-0012-9400, 224CRLZ, 5210-00-287-3337 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-171558?
SM-B-171558 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5815-00-356-3408. 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