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501-12-21 — DRILL,TWIST

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

501-12-21: DRILL,TWIST.

The DRILL,TWIST is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, point_type: CONVENTIONAL, point_angle: 135.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, flute_length: 2.125 INCHES NOMINAL IN, flute_quantity: 12. This part is cataloged in the U.S.

Government catalog under NSN 5133-01-526-3781, 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
501-12-21
NSN: 5133-01-526-3781
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
CAGE: 16568 — PRECISION TWIST DRILL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
point_typeCONVENTIONAL
point_angle135.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length2.125 INCHES NOMINAL IN
flute_quantity12
overall_length12.000 INCHES NOMINAL IN
shank_diameter0.159 INCHES NOMINAL IN
cutting_end_styleGENERAL PURPOSE
nominal_cutting_diameter0.1590 INCHES IN
cutting_rotation_directionRIGHT-HAND
NSN5133-01-526-3781
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DRILL,TWIST TITLE COMPONENT PN 501-12-21 MFR DRILL,TWIST
KEY FEATURES
•
SHANK DIAMETER: 0.159 INCHES NOMINAL IN
•
CUTTING END STYLE: GENERAL PURPOSE
•
FLUTE LENGTH: 2.125 INCHES NOMINAL IN
•
NOMINAL CUTTING DIAMETER: 0.1590 INCHES IN
•
CUTTING ROTATION DIRECTION: RIGHT-HAND
•
SHANK STYLE: STRAIGHT ROUND
•
FLUTE QUANTITY: 12
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.159 INCHES NOMINAL IN
CUTTING END STYLEGENERAL PURPOSE
FLUTE LENGTH2.125 INCHES NOMINAL IN
OVERALL LENGTH12.000 INCHES NOMINAL IN
NOMINAL CUTTING DIAMETER0.1590 INCHES IN
CUTTING ROTATION DIRECTIONRIGHT-HAND
SHANK STYLESTRAIGHT ROUND
FLUTE QUANTITY12
MATERIALSTEEL OVERALL
POINT ANGLE135.0 DEGREES NOMINAL
OTHER ITEMS IN FSC 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5133-00-001-1296 5133-00-001-1298 5133-00-005-2258 5133-00-005-7727 5133-00-005-8710 5133-00-005-8711 5133-00-005-8712 5133-00-005-8713
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 501-12-21?
501-12-21 is a DRILL,TWIST.
What is the NSN for 501-12-21?
501-12-21 is cataloged in the U.S. Government catalog under NSN 5133-01-526-3781. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.