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PartsTable / COMPONENT / 12FRU
12FRU ✓ 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

TANG BREAKOFF TOOL,SCREW THREAD. Key specifications include material: STEEL OVERALL, thread_length: 2.000 INCHES NOMINAL IN, overall_length: 4.469 INCHES NOMINAL IN, special_features: ROUGHING TAP FOR SCREW THREAD INSERT, style_designator: STRAIGHT FLUTE, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-370-4066, 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
12FRU
NSN: 5136-00-370-4066
FSC: 5136
CAGE: 01556 — STANLEY ENGINEERED FASTENING LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_length2.000 INCHES NOMINAL IN
flute_quantity4
overall_length4.469 INCHES NOMINAL IN
special_featuresROUGHING TAP FOR SCREW THREAD INSERT
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.489 INCHES NOMINAL IN
starting_chamfer_typePLUG
thread_forming_methodGROUND
thread_pitch_diameters+0.7690 TO 0.7700 INCHES IN
NSN5136-00-370-4066
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TANG BREAKOFF TOOL,SCREW THREAD TITLE COMPONENT PN 12FRU MFR TANG BREAKOFF TOOL,SCR
KEY FEATURES
•
THREAD FORMING METHOD: GROUND
•
STYLE DESIGNATOR: STRAIGHT FLUTE
•
FLUTE QUANTITY: 4
•
STARTING CHAMFER TYPE: PLUG
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS
•
MATERIAL: STEEL OVERALL
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.750-16 STI
•
WIDTH ACROSS FLATS: 0.489 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD FORMING METHODGROUND
STYLE DESIGNATORSTRAIGHT FLUTE
FLUTE QUANTITY4
STARTING CHAMFER TYPEPLUG
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS
MATERIALSTEEL OVERALL
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.750-16 STI
WIDTH ACROSS FLATS0.489 INCHES NOMINAL IN
OVERALL LENGTH4.469 INCHES NOMINAL IN
THREAD STRUCTUREREGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
4CRUInterchangeable
interchangeable cross-reference
interchangeable
MIL-T-21309 TY1CL2Interchangeable
interchangeable cross-reference
interchangeable
MIL-T-21309Interchangeable
interchangeable cross-reference
interchangeable
4FRUInterchangeable
interchangeable cross-reference
interchangeable
5FRUInterchangeable
interchangeable cross-reference
interchangeable
6CRUInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12FRU?
12FRU is a TANG BREAKOFF TOOL,SCREW THREAD.
What parts can replace 12FRU?
There are 16 known substitutes for 12FRU: 4CRU, MIL-T-21309 TY1CL2, MIL-T-21309 and 13 more. Substitute compatibility should be verified for your specific system.
Is 12FRU still available?
12FRU 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