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Technical Data Sheet
PartsTable / COMPONENT / 7539663
7539663 ✓ 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,HEADED is a the manufacturer industrial component. Key specifications include height: 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, diameter: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN, material: STEEL COMP 1010 OR STEEL COMP 1111 OVERALL, head_style: FLAT CHAMFER, chamfer_length: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN, style_designator: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-753-9663, 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
7539663
NSN: 5315-00-753-9663
FSC: 5315
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
height0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
diameter0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
materialSTEEL COMP 1010 OR STEEL COMP 1111 OVERALL
head_styleFLAT CHAMFER
chamfer_length0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
style_designatorSTRAIGHT
features_providedCASEHARDENED
pin_chamfer_angle15.0 DEGREES NOMINAL
pin_head_diameter1.047 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
surface_treatmentZINC OVERALL
under_head_length3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM IN
first_hole_diameter0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
NSN5315-00-753-9663
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7539663 · 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
•
HEAD STYLE: FLAT CHAMFER
•
PIN CHAMFER ANGLE: 15.0 DEGREES NOMINAL
•
FEATURES PROVIDED: CASEHARDENED
•
UNDER HEAD LENGTH: 3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN: 0.312 INCHES NOMINAL IN
•
HEIGHT: 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
CHAMFER LENGTH: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEFLAT CHAMFER
PIN CHAMFER ANGLE15.0 DEGREES NOMINAL
FEATURES PROVIDEDCASEHARDENED
UNDER HEAD LENGTH3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.312 INCHES NOMINAL IN
HEIGHT0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
HOLE ARRANGEMENT STYLEONE END DRILLED
CHAMFER LENGTH0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL,SURFACE TREATMEN,LARGEST BEARING SURFACE,EFFECTIVE LG,AND MODIFIED UNDERHEAD LG
PIN HEAD DIAMETER1.047 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
66742Interchangeable
interchangeable cross-reference
interchangeable
21397Interchangeable
interchangeable cross-reference
interchangeable
151F5-2Interchangeable
interchangeable cross-reference
interchangeable
SAE J512 5-2-5 010424BInterchangeable
interchangeable cross-reference
interchangeable
140642Interchangeable
interchangeable cross-reference
interchangeable
019-005383Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7539663?
7539663 is a PIN,STRAIGHT,HEADED.
What parts can replace 7539663?
There are 11 known substitutes for 7539663: 66742, 21397, 151F5-2 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7539663?
7539663 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-753-9663. 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