3961 1/4 — DRILL,TWIST

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3961 1/4: DRILL,TWIST.

The DRILL,TWIST is a the manufacturer industrial component. Key specifications include material: STEEL ALLOY OVERALL, point_type: SPLIT, point_angle: 135.0 DEGREES NOMINAL, flute_length: 0.562 INCHES NOMINAL IN, overall_length: 1.250 INCHES NOMINAL IN, thread_quantity: 28 PER INCH. This part is cataloged in the U.S.

Government catalog under NSN 5133-01-050-0206, 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

3961 1/4

NSN: 5133-01-050-0206
NIINs: 010500206, 012609283
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
CAGE: 03882 — NEW YORK TWIST DRILL INC (USA)

SPECIFICATIONS

material	STEEL ALLOY OVERALL
point_type	SPLIT
point_angle	135.0 DEGREES NOMINAL
flute_length	0.562 INCHES NOMINAL IN
flute_quantity	2
overall_length	1.250 INCHES NOMINAL IN
thread_quantity	28 PER INCH
special_features	THREADED HEX SHANK; SHORT LENGTH; FRACTIONAL SIZE 1/4
cutting_end_style	GENERAL PURPOSE
supplementary_features	O/A LENGTH DOES NOT INCLUDE THE THREAD LENGTH PAST THE HEXAGON NUT, THREADS = 1/4 IN. (+1/16 IN.) IN
nominal_thread_diameter	0.250 INCHES IN
nominal_cutting_diameter	0.2500 INCHES IN
NSN	5133-01-050-0206

COMPONENT DIAGRAM

KEY FEATURES

•

CUTTING END STYLE: GENERAL PURPOSE

•

SUPPLEMENTARY FEATURES: O/A LENGTH DOES NOT INCLUDE THE THREAD LENGTH PAST THE HEXAGON NUT, THREADS = 1/4 IN. (+1/16 IN.) IN

•

FLUTE LENGTH: 0.562 INCHES NOMINAL IN

•

NOMINAL CUTTING DIAMETER: 0.2500 INCHES IN

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

CUTTING ROTATION DIRECTION: RIGHT-HAND

•

SPECIFICATION/STANDARD DATA: 80205-NAS965 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

TECHNICAL CHARACTERISTICS

CUTTING END STYLE	GENERAL PURPOSE
SUPPLEMENTARY FEATURES	O/A LENGTH DOES NOT INCLUDE THE THREAD LENGTH PAST THE HEXAGON NUT, THREADS = 1/4 IN. (+1/16 IN.) IN
FLUTE LENGTH	0.562 INCHES NOMINAL IN
OVERALL LENGTH	1.250 INCHES NOMINAL IN
NOMINAL CUTTING DIAMETER	0.2500 INCHES IN
NOMINAL THREAD DIAMETER	0.250 INCHES IN
CUTTING ROTATION DIRECTION	RIGHT-HAND
SPECIFICATION/STANDARD DATA	80205-NAS965 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA	D TYPE AND 1/4 SIZE
FLUTE QUANTITY	2

SUBSTITUTES & CROSS-REFERENCES 5

038852TSSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

NAS965Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

252-2500Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

37283Reference document

Same NSN cross-reference

Reference document — Secondary reference

NAS965 TYDSZ1/4Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 3961 1/4?

3961 1/4 is a DRILL,TWIST.

What parts can replace 3961 1/4?

There are 5 known substitutes for 3961 1/4: 038852TS, NAS965, 252-2500 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 3961 1/4?

3961 1/4 is cataloged in the U.S. Government catalog under NSN 5133-01-050-0206. This indicates validated use in U.S. government and defense supply chains.

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