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31AX43 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

31AX43: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include first_end_style: CHAMFERED, pin_overall_length: 0.863 INCHES MINIMUM AND 0.887 INCHES MAXIMUM IN, pin_overall_diameter: 0.3720 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN, first_end_taper_angle: 25.0 DEGREES NOMINAL, first_end_taper_length: 0.031 INCHES NOMINAL IN, material_document_and_classification: ASTM A576 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-010-3768, 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
31AX43
NSN: 5315-00-010-3768
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 76040 — MACK TRUCKS INC PARTS OPN (USA)
SPECIFICATIONS
first_end_styleCHAMFERED
pin_overall_length0.863 INCHES MINIMUM AND 0.887 INCHES MAXIMUM IN
pin_overall_diameter0.3720 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
first_end_taper_angle25.0 DEGREES NOMINAL
first_end_taper_length0.031 INCHES NOMINAL IN
material_document_and_classificationASTM A576 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-010-3768
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31AX43 · 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: 0.031 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
FIRST END TAPER ANGLE: 25.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.3720 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 0.863 INCHES MINIMUM AND 0.887 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1025 OR STEEL COMP 1027 OR STEEL COMP 1030 OR STEEL COMP 1524 OVERALL
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.031 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OVERALL
FIRST END TAPER ANGLE25.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.3720 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.863 INCHES MINIMUM AND 0.887 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1025 OR STEEL COMP 1027 OR STEEL COMP 1030 OR STEEL COMP 1524 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
103768Same 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 31AX43?
31AX43 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 31AX43?
There is 1 known substitute for 31AX43: 103768. Substitute compatibility should be verified for your specific system.
What is the NSN for 31AX43?
31AX43 is cataloged in the U.S. Government catalog under NSN 5315-00-010-3768. This indicates validated use in U.S. government and defense supply chains.
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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.