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C65603 ✓ 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 DIE SET,RETHREADING,SOLID NUT is a the manufacturer industrial component. Key specifications include thickness: 0.312 INCHES NOMINAL IN, style_designator: SOLID HEXAGON NUT, thread_direction: RIGHT-HAND, width_across_flats: 0.688 INCHES NOMINAL IN, thread_pitch_diameters: +0.2691 TO 0.2764 INCHES IN, thread_size_and_series/type_designator: 0.312-18 UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-237-8269, 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
C65603
NSN: 5136-00-237-8269
FSC: 5136
CAGE: 60NQ9 — GREENFIELD INDUSTRIES INC (USA)
SPECIFICATIONS
thickness0.312 INCHES NOMINAL IN
style_designatorSOLID HEXAGON NUT
thread_directionRIGHT-HAND
width_across_flats0.688 INCHES NOMINAL IN
thread_pitch_diameters+0.2691 TO 0.2764 INCHES IN
thread_size_and_series/type_designator0.312-18 UNIFIED NATIONAL COARSE (UNC)
NSN5136-00-237-8269
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DIE SET,RETHREADING,SOLID NUT TITLE COMPONENT PN C65603 MFR DIE SET,RETHREADING,SO
KEY FEATURES
•
THREAD PITCH DIAMETERS: +0.2691 TO 0.2764 INCHES IN
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
THICKNESS: 0.312 INCHES NOMINAL IN
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.312-18 UNIFIED NATIONAL COARSE (UNC)
•
STYLE DESIGNATOR: SOLID HEXAGON NUT
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD PITCH DIAMETERS+0.2691 TO 0.2764 INCHES IN
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
THICKNESS0.312 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.312-18 UNIFIED NATIONAL COARSE (UNC)
STYLE DESIGNATORSOLID HEXAGON NUT
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
12130Interchangeable
interchangeable cross-reference
interchangeable
7451059Interchangeable
interchangeable cross-reference
interchangeable
241628R91Interchangeable
interchangeable cross-reference
interchangeable
L212781-2Interchangeable
interchangeable cross-reference
interchangeable
7227Interchangeable
interchangeable cross-reference
interchangeable
TYPE900DP5TInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C65603?
C65603 is a DIE SET,RETHREADING,SOLID NUT.
What parts can replace C65603?
There are 23 known substitutes for C65603: 12130, 7451059, 241628R91 and 20 more. Substitute compatibility should be verified for your specific system.
Is C65603 still available?
C65603 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