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Technical Data Sheet

3B 5/8 — CHUCK,DRILL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3B 5/8: CHUCK,DRILL.

The CHUCK,DRILL is a the manufacturer industrial component. Key specifications include unit_type: 3-JAW KEY, attachment_type: JACOBS TAPER, performance_type: HEAVY DUTY, special_features: JACOBS CHUCK 0.625 IN; CLOSED L=3.810 IN; OPEN L=2.840 IN IN, tool_size_accommodated: 0.125 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-426-4339, 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
3B 5/8
NSN: 5315-00-426-4339
NIINs: 004264339, 016584555
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
unit_type3-JAW KEY
attachment_typeJACOBS TAPER
performance_typeHEAVY DUTY
special_featuresJACOBS CHUCK 0.625 IN; CLOSED L=3.810 IN; OPEN L=2.840 IN IN
tool_size_accommodated0.125 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
NSN5315-00-426-4339
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3B 5/8 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST END TAPER LENGTH: 0.062 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: BOTH END DRILLED
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.141 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.6250 INCHES NOMINAL IN
•
PIN OVERALL LENGTH: 6.812 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.062 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEBOTH END DRILLED
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.141 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.6250 INCHES NOMINAL IN
PIN OVERALL LENGTH6.812 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SECOND HOLE DIAMETER0.141 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
3B0058Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3B 5/8?
3B 5/8 is a CHUCK,DRILL.
What parts can replace 3B 5/8?
There is 1 known substitute for 3B 5/8: 3B0058. Substitute compatibility should be verified for your specific system.
What is the NSN for 3B 5/8?
3B 5/8 is cataloged in the U.S. Government catalog under NSN 5315-00-426-4339. 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.