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ZT75-68 — COUNTERSINK

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

ZT75-68: COUNTERSINK.

The COUNTERSINK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_diameter: 0.500 INCHES NOMINAL IN, included_angle: 100.0 DEGREES NOMINAL, overall_length: 0.750 INCHES NOMINAL IN, pilot_diameter: 0.250 INCHES NOMINAL IN, point_diameter: 0.251 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5133-00-596-1042, 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
ZT75-68
NSN: 5133-00-596-1042
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
CAGE: 67179 — ZEPHYR MANUFACTURING CO., INC. DBA ZEPHYR MANUFACTURING CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_diameter0.500 INCHES NOMINAL IN
flute_quantity3
included_angle100.0 DEGREES NOMINAL
overall_length0.750 INCHES NOMINAL IN
pilot_diameter0.250 INCHES NOMINAL IN
point_diameter0.251 INCHES NOMINAL IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
cutting_end_styleSTRAIGHT FLUTE W/THROUGH HOLE
features_providedREPLACEABLE PILOT
cutting_rotation_directionRIGHT-HAND
pilot_hole_nominal_diameter0.251 INCHES IN
NSN5133-00-596-1042
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUNTERSINK TITLE COMPONENT PN ZT75-68 MFR COUNTERSINK
KEY FEATURES
•
BODY DIAMETER: 0.500 INCHES NOMINAL IN
•
POINT DIAMETER: 0.251 INCHES NOMINAL IN
•
CUTTING END STYLE: STRAIGHT FLUTE W/THROUGH HOLE
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
CUTTING ROTATION DIRECTION: RIGHT-HAND
•
FEATURES PROVIDED: REPLACEABLE PILOT
•
PILOT DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BODY DIAMETER0.500 INCHES NOMINAL IN
POINT DIAMETER0.251 INCHES NOMINAL IN
CUTTING END STYLESTRAIGHT FLUTE W/THROUGH HOLE
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
OVERALL LENGTH0.750 INCHES NOMINAL IN
CUTTING ROTATION DIRECTIONRIGHT-HAND
FEATURES PROVIDEDREPLACEABLE PILOT
PILOT DIAMETER0.250 INCHES NOMINAL IN
PILOT HOLE NOMINAL DIAMETER0.251 INCHES IN
FLUTE QUANTITY3
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 2
GGG-C-613Reference document
Same NSN cross-reference
Reference document — Secondary reference
GGG-C-613 TY1CLBSZ5NR11Reference 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 ZT75-68?
ZT75-68 is a COUNTERSINK.
What parts can replace ZT75-68?
There are 2 known substitutes for ZT75-68: GGG-C-613, GGG-C-613 TY1CLBSZ5NR11. Substitute compatibility should be verified for your specific system.
What is the NSN for ZT75-68?
ZT75-68 is cataloged in the U.S. Government catalog under NSN 5133-00-596-1042. 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.