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03FBB — TANG BREAKOFF TOOL,SCREW THREAD

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

03FBB: TANG BREAKOFF TOOL,SCREW THREAD.

TANG BREAKOFF TOOL,SCREW THREAD. Key specifications include length: 0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM SQUARE END IN, material: STEEL OVERALL, thread_length: 0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN, overall_length: 1.906 INCHES MINIMUM AND 1.969 INCHES MAXIMUM IN, shank_diameter: 0.1395 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN, special_features: FINISHING TAP FOR SCREW THREAD INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5136-01-038-0955, 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
03FBB
NSN: 5136-01-038-0955
FSC: 5136 — Taps, Dies, and Collets; Hand and Machine
CAGE: 01556 — STANLEY ENGINEERED FASTENING LLC (USA)
SPECIFICATIONS
length0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM SQUARE END IN
materialSTEEL OVERALL
thread_length0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
flute_quantity3
overall_length1.906 INCHES MINIMUM AND 1.969 INCHES MAXIMUM IN
shank_diameter0.1395 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
special_featuresFINISHING TAP FOR SCREW THREAD INSERT
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
starting_chamfer_typeBOTTOMING
NSN5136-01-038-0955
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TANG BREAKOFF TOOL,SCREW THREAD TITLE COMPONENT PN 03FBB MFR TANG BREAKOFF TOOL,SCR
KEY FEATURES
•
SHANK DIAMETER: 0.1395 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
LENGTH: 0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM SQUARE END IN
•
THREAD STRUCTURE: REGULAR
•
THREAD LENGTH: 0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STRAIGHT FLUTE
•
THREAD PITCH DIAMETERS: +0.0874 TO 0.0895 INCHES IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.1395 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
LENGTH0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM SQUARE END IN
THREAD STRUCTUREREGULAR
THREAD LENGTH0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
STYLE DESIGNATORSTRAIGHT FLUTE
THREAD PITCH DIAMETERS+0.0874 TO 0.0895 INCHES IN
OVERALL LENGTH1.906 INCHES MINIMUM AND 1.969 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 3 CLASS
OTHER ITEMS IN FSC 5136 — Taps, Dies, and Collets; Hand and Machine
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5136-00-003-6437 5136-00-004-6689 5136-00-005-5655 5136-00-006-4548 5136-00-006-4562 5136-00-007-1482 5136-00-007-9016 5136-00-008-3607
SUBSTITUTES & CROSS-REFERENCES 4
A-A-59158Reference document
Same NSN cross-reference
Reference document — Identification reference
MIL-T-21309 TY1CL3Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-T-21309Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-A-59158 TY1CL3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 03FBB?
03FBB is a TANG BREAKOFF TOOL,SCREW THREAD.
What parts can replace 03FBB?
There are 4 known substitutes for 03FBB: A-A-59158, MIL-T-21309 TY1CL3, MIL-T-21309 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 03FBB?
03FBB is cataloged in the U.S. Government catalog under NSN 5136-01-038-0955. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.