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Technical Data Sheet
PartsTable / COMPONENT / 858B1
858B1 ✓ 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 PLUG,MACHINE THREAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, core_depth: 0.938 INCHES NOMINAL IN, head_height: 0.922 INCHES NOMINAL IN, thread_class: 2A EXTERNAL A, thread_length: 0.500 INCHES NOMINAL EXTERNAL IN, overall_length: 1.550 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 5365-00-740-9027, 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
858B1
NSN: 5365-00-740-9027
FSC: 5365
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
core_depth0.938 INCHES NOMINAL IN
head_height0.922 INCHES NOMINAL IN
thread_class2A EXTERNAL A
thread_length0.500 INCHES NOMINAL EXTERNAL IN
overall_length1.550 INCHES NOMINAL IN
flange_diameter1.812 INCHES NOMINAL IN
connection_stylePLAIN
flange_thickness0.380 INCHES NOMINAL IN
style_designatorPLUG, MACHINE
thread_directionRIGHT-HAND EXTERNAL
body_core_diameter0.375 INCHES NOMINAL IN
NSN5365-00-740-9027
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PLUG,MACHINE THREAD TITLE COMPONENT PN 858B1 MFR PLUG,MACHINE THREAD
KEY FEATURES
•
THREAD LENGTH: 0.500 INCHES NOMINAL EXTERNAL IN
•
MATERIAL: STEEL OVERALL
•
CONNECTION STYLE: PLAIN
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
THREAD SERIES DESIGNATOR: UNF EXTERNAL
•
THREAD CLASS: 2A EXTERNAL A
•
BODY CORE DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.500 INCHES NOMINAL EXTERNAL IN
MATERIALSTEEL OVERALL
CONNECTION STYLEPLAIN
THREAD DIRECTIONRIGHT-HAND EXTERNAL
THREAD SERIES DESIGNATORUNF EXTERNAL
THREAD CLASS2A EXTERNAL A
OVERALL LENGTH1.550 INCHES NOMINAL IN
BODY CORE DIAMETER0.375 INCHES NOMINAL IN
FLANGE DIAMETER1.812 INCHES NOMINAL IN
CORE DEPTH0.938 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
14291Interchangeable
interchangeable cross-reference
interchangeable
HL20-02ZInterchangeable
interchangeable cross-reference
interchangeable
MILR26Interchangeable
interchangeable cross-reference
interchangeable
648209-000Interchangeable
interchangeable cross-reference
interchangeable
C2088487-1Interchangeable
interchangeable cross-reference
interchangeable
XW2562LCM0NELInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 858B1?
858B1 is a PLUG,MACHINE THREAD.
What parts can replace 858B1?
There are 12 known substitutes for 858B1: 14291, HL20-02Z, MILR26 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 858B1?
858B1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-740-9027. 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