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TFIM25.0120-278 — COUNTERSINK

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

TFIM25.0120-278: COUNTERSINK.

The COUNTERSINK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_style: EXTERNALLY THREADED, body_diameter: 0.625 INCHES NOMINAL IN, included_angle: 90.0 DEGREES NOMINAL, overall_length: 1.430 INCHES NOMINAL IN, pilot_diameter: 0.278 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5133-01-282-0636, 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
TFIM25.0120-278
NSN: 5133-01-282-0636
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_styleEXTERNALLY THREADED
body_diameter0.625 INCHES NOMINAL IN
flute_quantity1
included_angle90.0 DEGREES NOMINAL
overall_length1.430 INCHES NOMINAL IN
pilot_diameter0.278 INCHES NOMINAL IN
point_diameter0.278 INCHES NOMINAL IN
hardness_rating49.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
thread_quantity28 PER INCH
thread_directionRIGHT-HAND
cutting_end_styleSTRAIGHT FLUTE BLUNT END
NSN5133-01-282-0636
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUNTERSINK TITLE COMPONENT PN TFIM25.0120-278 MFR COUNTERSINK
KEY FEATURES
•
BODY DIAMETER: 0.625 INCHES NOMINAL IN
•
POINT DIAMETER: 0.278 INCHES NOMINAL IN
•
CUTTING END STYLE: STRAIGHT FLUTE BLUNT END
•
HARDNESS RATING: 49.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
CUTTING ROTATION DIRECTION: RIGHT-HAND
•
FEATURES PROVIDED: INTEGRAL PILOT
TECHNICAL CHARACTERISTICS
BODY DIAMETER0.625 INCHES NOMINAL IN
POINT DIAMETER0.278 INCHES NOMINAL IN
CUTTING END STYLESTRAIGHT FLUTE BLUNT END
HARDNESS RATING49.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
OVERALL LENGTH1.430 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
CUTTING ROTATION DIRECTIONRIGHT-HAND
FEATURES PROVIDEDINTEGRAL PILOT
THREAD DIRECTIONRIGHT-HAND
PILOT DIAMETER0.278 INCHES NOMINAL IN
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TFIM25.0120-278?
TFIM25.0120-278 is a COUNTERSINK.
What is the NSN for TFIM25.0120-278?
TFIM25.0120-278 is cataloged in the U.S. Government catalog under NSN 5133-01-282-0636. 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.