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PartsTable / COMPONENT / C54818
C54818 ✓ 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 ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include length: 0.625 INCHES NOMINAL SQUARE END IN, material: STEEL OVERALL, thread_length: 1.812 INCHES NOMINAL IN, overall_length: 4.031 INCHES NOMINAL IN, shank_diameter: 0.542 INCHES NOMINAL IN, style_designator: STRAIGHT FLUTE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-889-6971, 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
C54818
NSN: 5136-00-889-6971
FSC: 5136
CAGE: 1NEX4 — KENNAMETAL INC. DIV KENNAMETAL INDUSTRIAL PRODUCTS GROUP (USA)
SPECIFICATIONS
length0.625 INCHES NOMINAL SQUARE END IN
materialSTEEL OVERALL
thread_length1.812 INCHES NOMINAL IN
flute_quantity4
overall_length4.031 INCHES NOMINAL IN
shank_diameter0.542 INCHES NOMINAL IN
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.406 INCHES NOMINAL IN
starting_chamfer_typePLUG
thread_forming_methodGROUND
NSN5136-00-889-6971
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ADAPTER,STRAIGHT,TUBE TO BOSS TITLE COMPONENT PN C54818 MFR ADAPTER,STRAIGHT,TUBE
KEY FEATURES
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD PITCH DIAMETERS: +0.6479 TO 0.6484 INCHES IN
•
WIDTH ACROSS FLATS: 0.406 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT FLUTE
•
FLUTE QUANTITY: 4
•
THREAD STRUCTURE: REGULAR
•
STARTING CHAMFER TYPE: PLUG
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD PITCH DIAMETERS+0.6479 TO 0.6484 INCHES IN
WIDTH ACROSS FLATS0.406 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT FLUTE
FLUTE QUANTITY4
THREAD STRUCTUREREGULAR
STARTING CHAMFER TYPEPLUG
MATERIALSTEEL OVERALL
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.688-16 UNS
THREAD FORMING METHODGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
NF-4003-CInterchangeable
interchangeable cross-reference
interchangeable
7309BGInterchangeable
interchangeable cross-reference
interchangeable
11246Interchangeable
interchangeable cross-reference
interchangeable
ST783AInterchangeable
interchangeable cross-reference
interchangeable
043491Interchangeable
interchangeable cross-reference
interchangeable
75H167Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C54818?
C54818 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace C54818?
There are 23 known substitutes for C54818: NF-4003-C, 7309BG, 11246 and 20 more. Substitute compatibility should be verified for your specific system.
Is C54818 still available?
C54818 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026