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PartsTable / COMPONENT / 124-4639027 PC 56
124-4639027 PC 56 ✓ 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: 0.188 INCHES NOMINAL IN, material: STEEL OVERALL, special_features: SCUTTLE, style_designator: STANDARD, underloop_length: 1.500 INCHES NOMINAL IN, end_item_identification: AIRCRAFT CARRIER CVN 68. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-473-7766, 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
124-4639027 PC 56
NSN: 5315-01-473-7766
FSC: 5315
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter0.188 INCHES NOMINAL IN
materialSTEEL OVERALL
special_featuresSCUTTLE
style_designatorSTANDARD
underloop_length1.500 INCHES NOMINAL IN
end_item_identificationAIRCRAFT CARRIER CVN 68
NSN5315-01-473-7766
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 124-4639027 PC 56 · 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
•
UNDERLOOP LENGTH: 1.500 INCHES NOMINAL IN
•
DIAMETER: 0.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STANDARD
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
UNDERLOOP LENGTH1.500 INCHES NOMINAL IN
SPECIAL FEATURESSCUTTLE
DIAMETER0.188 INCHES NOMINAL IN
END ITEM IDENTIFICATIONAIRCRAFT CARRIER CVN 68
STYLE DESIGNATORSTANDARD
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
124-4322652 PC 10Interchangeable
interchangeable cross-reference
interchangeable
124-4322652Interchangeable
interchangeable cross-reference
interchangeable
NO.1 LG=7/8Interchangeable
interchangeable cross-reference
interchangeable
NO.0 LG=1-5/8Interchangeable
interchangeable cross-reference
interchangeable
124-4322652 PC 63Interchangeable
interchangeable cross-reference
interchangeable
124-4322652 PC 92Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 124-4639027 PC 56?
124-4639027 PC 56 is a PIN,COTTER.
What parts can replace 124-4639027 PC 56?
There are 31 known substitutes for 124-4639027 PC 56: 124-4322652 PC 10, 124-4322652, NO.1 LG=7/8 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 124-4639027 PC 56?
124-4639027 PC 56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-473-7766. 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