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Technical Data Sheet
MIL-T-21309 ✓ 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 TOOL KIT,SCREW THREAD INSERT 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 MAXIMUM IN, special_features: FINISHING TAP FOR SCREW THREAD INSERT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-045-0596, 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
MIL-T-21309
NSN: 5136-00-045-0596
FSC: 5136
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
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 MAXIMUM IN
special_featuresFINISHING TAP FOR SCREW THREAD INSERT
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.406 INCHES NOMINAL IN
starting_chamfer_typeBOTTOMING
NSN5136-00-045-0596
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TOOL KIT,SCREW THREAD INSERT TITLE COMPONENT PN MIL-T-21309 MFR TOOL KIT,SCREW THREAD
KEY FEATURES
MATERIAL: STEEL OVERALL
STARTING CHAMFER TYPE: PLUG
FLUTE QUANTITY: 3
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.138-32 STI
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 1 CLASS
SHANK DIAMETER: 0.194 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
STARTING CHAMFER TYPEPLUG
FLUTE QUANTITY3
OVERALL LENGTH2.375 INCHES NOMINAL IN
SPECIAL FEATURESFINISHING TAP FOR SCREW THREAD INSERT
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.138-32 STI
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 CLASS
SHANK DIAMETER0.194 INCHES MAXIMUM IN
THREAD LENGTH0.875 INCHES NOMINAL IN
LENGTH0.250 INCHES NOMINAL SQUARE END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
06CPAInterchangeable
Same NIIN cross-reference
interchangeable
B94.9Interchangeable
Same NIIN cross-reference
interchangeable
MIL-T-21309 TY1CL1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-T-21309?
MIL-T-21309 is a TOOL KIT,SCREW THREAD INSERT.
What parts can replace MIL-T-21309?
There are 3 known substitutes for MIL-T-21309: 06CPA, B94.9, MIL-T-21309 TY1CL1. Substitute compatibility should be verified for your specific system.
Is MIL-T-21309 still available?
MIL-T-21309 is currently cancelled.
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