3CBB — TANG BREAKOFF TOOL,SCREW THREAD

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3CBB: TANG BREAKOFF TOOL,SCREW THREAD.

TANG BREAKOFF TOOL,SCREW THREAD. Key specifications include length: 0.312 INCHES NOMINAL SQUARE END IN, material: STEEL OVERALL, thread_length: 1.000 INCHES NOMINAL IN, overall_length: 2.500 INCHES NOMINAL IN, shank_diameter: 0.255 INCHES MAXIMUM IN, special_features: FINISHING TAP FOR SCREW THREAD INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5136-00-862-7873, 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

3CBB

NSN: 5136-00-862-7873
FSC: 5136 — Taps, Dies, and Collets; Hand and Machine
CAGE: 01556 — STANLEY ENGINEERED FASTENING LLC (USA)

SPECIFICATIONS

length	0.312 INCHES NOMINAL SQUARE END IN
material	STEEL OVERALL
thread_length	1.000 INCHES NOMINAL IN
flute_quantity	3
overall_length	2.500 INCHES NOMINAL IN
shank_diameter	0.255 INCHES MAXIMUM IN
special_features	FINISHING TAP FOR SCREW THREAD INSERT
style_designator	STRAIGHT FLUTE
thread_direction	RIGHT-HAND
thread_structure	REGULAR
width_across_flats	0.191 INCHES NOMINAL IN
starting_chamfer_type	BOTTOMING
NSN	5136-00-862-7873

COMPONENT DIAGRAM

KEY FEATURES

•

SHANK DIAMETER: 0.255 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.191 INCHES NOMINAL IN

•

LENGTH: 0.312 INCHES NOMINAL SQUARE END IN

•

THREAD STRUCTURE: REGULAR

•

THREAD LENGTH: 1.000 INCHES NOMINAL IN

•

STYLE DESIGNATOR: STRAIGHT FLUTE

•

THREAD PITCH DIAMETERS: +0.2175 TO 0.2180 INCHES IN

TECHNICAL CHARACTERISTICS

SHANK DIAMETER	0.255 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.191 INCHES NOMINAL IN
LENGTH	0.312 INCHES NOMINAL SQUARE END IN
THREAD STRUCTURE	REGULAR
THREAD LENGTH	1.000 INCHES NOMINAL IN
STYLE DESIGNATOR	STRAIGHT FLUTE
THREAD PITCH DIAMETERS	+0.2175 TO 0.2180 INCHES IN
OVERALL LENGTH	2.500 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND
NONDEFINITIVE SPEC/STD DATA	1 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

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 3CBB?

3CBB is a TANG BREAKOFF TOOL,SCREW THREAD.

What parts can replace 3CBB?

There are 4 known substitutes for 3CBB: 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 3CBB?

3CBB is cataloged in the U.S. Government catalog under NSN 5136-00-862-7873. This indicates validated use in U.S. government and defense supply chains.

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