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PartsTable / COMPONENT / 6508611
6508611 ✓ 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 COMP 303 OVERALL, first_end_style: SQUARE, pin_overall_length: 2.619 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN, pin_overall_diameter: 0.1870 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN, second_end_relationship_with_first_end: IDENTICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-371-7220, 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
6508611
NSN: 5315-01-371-7220
FSC: 5315
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
first_end_styleSQUARE
pin_overall_length2.619 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN
pin_overall_diameter0.1870 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-01-371-7220
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6508611 · 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
•
MATERIAL: STEEL COMP 303 OVERALL
•
PIN OVERALL DIAMETER: 0.1870 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
FIRST END STYLE: SQUARE
•
PIN OVERALL LENGTH: 2.619 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 303 OVERALL
PIN OVERALL DIAMETER0.1870 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END STYLESQUARE
PIN OVERALL LENGTH2.619 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
S326Interchangeable
interchangeable cross-reference
interchangeable
7341456Interchangeable
interchangeable cross-reference
interchangeable
SFR1-53PPK18/36Interchangeable
interchangeable cross-reference
interchangeable
S326-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6508611?
6508611 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 6508611?
There are 4 known substitutes for 6508611: S326, 7341456, SFR1-53PPK18/36 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6508611?
6508611 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-371-7220. 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