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1A4653 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, first_end_style: CHAMFERED, pin_overall_length: 2.219 INCHES NOMINAL IN, pin_overall_diameter: 0.3120 INCHES NOMINAL IN, first_end_taper_angle: 25.0 DEGREES NOMINAL, first_end_taper_length: 0.094 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-245-6610, 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
1A4653
NSN: 5315-00-245-6610
FSC: 5315
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
first_end_styleCHAMFERED
pin_overall_length2.219 INCHES NOMINAL IN
pin_overall_diameter0.3120 INCHES NOMINAL IN
first_end_taper_angle25.0 DEGREES NOMINAL
first_end_taper_length0.094 INCHES NOMINAL IN
material_document_and_classificationCOMP 1113 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-245-6610
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1A4653 · 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
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
PIN OVERALL DIAMETER: 0.3120 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: COMP 1113 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL LENGTH: 2.219 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
FIRST END TAPER ANGLE: 25.0 DEGREES NOMINAL
•
FIRST END TAPER LENGTH: 0.094 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PIN OVERALL DIAMETER0.3120 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONCOMP 1113 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL LENGTH2.219 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
FIRST END TAPER ANGLE25.0 DEGREES NOMINAL
FIRST END TAPER LENGTH0.094 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
BCP0-33786Interchangeable
interchangeable cross-reference
interchangeable
33786Interchangeable
interchangeable cross-reference
interchangeable
38003Interchangeable
interchangeable cross-reference
interchangeable
238597Interchangeable
interchangeable cross-reference
interchangeable
47973Interchangeable
interchangeable cross-reference
interchangeable
337.86Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1A4653?
1A4653 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 1A4653?
There are 6 known substitutes for 1A4653: BCP0-33786, 33786, 38003 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1A4653?
1A4653 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-245-6610. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026