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PartsTable / COMPONENT / 7739593
7739593 ✓ 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,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.3742 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 2.375 INCHES NOMINAL IN, undercut_width: 0.042 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN, first_end_style: CHAMFERED, hardness_rating: 60.0 ROCKWELL C MINIMUM AND 66.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-624-0435, 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
7739593
NSN: 5315-00-624-0435
FSC: 5315
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
diameter0.3742 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length2.375 INCHES NOMINAL IN
undercut_width0.042 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
first_end_styleCHAMFERED
hardness_rating60.0 ROCKWELL C MINIMUM AND 66.0 ROCKWELL C MAXIMUM OVERALL
undercut_radius0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
effective_length2.223 INCHES NOMINAL IN
style_designatorGROOVE
features_providedCASEHARDENED
undercut_diameter0.345 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
NSN5315-00-624-0435
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7739593 · 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
•
UNDERCUT DIAMETER: 0.345 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END TAPER ANGLE: 15.0 DEGREES NOMINAL
•
MATERIAL: STEEL OVERALL
•
UNDERCUT RADIUS: 0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
•
FEATURES PROVIDED: CASEHARDENED
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
STYLE DESIGNATOR: GROOVE
TECHNICAL CHARACTERISTICS (FLIS)
UNDERCUT DIAMETER0.345 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
FIRST END TAPER ANGLE15.0 DEGREES NOMINAL
MATERIALSTEEL OVERALL
UNDERCUT RADIUS0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
STYLE DESIGNATORGROOVE
FIRST END TAPER LENGTH0.047 INCHES NOMINAL IN
DIAMETER0.3742 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
788C983H05Interchangeable
interchangeable cross-reference
interchangeable
10243584Interchangeable
interchangeable cross-reference
interchangeable
1507-5Interchangeable
interchangeable cross-reference
interchangeable
44145Interchangeable
interchangeable cross-reference
interchangeable
13375Interchangeable
interchangeable cross-reference
interchangeable
740754-101Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7739593?
7739593 is a PIN,GROOVED,HEADLESS.
What parts can replace 7739593?
There are 16 known substitutes for 7739593: 788C983H05, 10243584, 1507-5 and 13 more. Substitute compatibility should be verified for your specific system.
Is 7739593 still available?
7739593 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026