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PartsTable / COMPONENT / D77403719
D77403719 ✓ 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,COTTER is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL COMP 1008 OVERALL, style_designator: STANDARD, underloop_length: 1.000 INCHES NOMINAL IN, surface_treatment: PHOSPHATE OVERALL, material_document_and_classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-013-7186, 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
D77403719
NSN: 5315-00-013-7186
FSC: 5315
CAGE: 81336 — CHIEF OF ENGINEERS DEPT OF ARMY (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL COMP 1008 OVERALL
style_designatorSTANDARD
underloop_length1.000 INCHES NOMINAL IN
surface_treatmentPHOSPHATE OVERALL
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-013-7186
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D77403719 · 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
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1008 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
UNDERLOOP LENGTH: 1.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPHOSPHATE OVERALL
DIAMETER0.125 INCHES NOMINAL IN
MATERIALSTEEL COMP 1008 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
UNDERLOOP LENGTH1.000 INCHES NOMINAL IN
STYLE DESIGNATORSTANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
507922-1Interchangeable
interchangeable cross-reference
interchangeable
51110Interchangeable
interchangeable cross-reference
interchangeable
65651-09045-101Interchangeable
interchangeable cross-reference
interchangeable
2410 57/64Interchangeable
interchangeable cross-reference
interchangeable
C12238Interchangeable
interchangeable cross-reference
interchangeable
110 57/64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D77403719?
D77403719 is a PIN,COTTER.
What parts can replace D77403719?
There are 17 known substitutes for D77403719: 507922-1, 51110, 65651-09045-101 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D77403719?
D77403719 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-013-7186. 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