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757863 ✓ 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 LOCKNUT,SKEIN is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: DUCTILE IRON,5.000 IN. LARGEST OD,1.300 IN.

O/A LG,2.375-12N THD,0.781 IN. THD LG,RH;INCL 16 WRENCHING LUGS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-477-5833, 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
757863
NSN: 5310-00-477-5833
FSC: 5310
CAGE: 23382 — FWD SEAGRAVE HOLDINGS LP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionDUCTILE IRON,5.000 IN. LARGEST OD,1.300 IN. O/A LG,2.375-12N THD,0.781 IN. THD LG,RH;INCL 16 WRENCHING LUGS IN
NSN5310-00-477-5833
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 757863 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: DUCTILE IRON,5.000 IN. LARGEST OD,1.300 IN. O/A LG,2.375-12N THD,0.781 IN. THD LG,RH;INCL 16 WRENCHING LUGS IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONDUCTILE IRON,5.000 IN. LARGEST OD,1.300 IN. O/A LG,2.375-12N THD,0.781 IN. THD LG,RH;INCL 16 WRENCHING LUGS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
32345Interchangeable
interchangeable cross-reference
interchangeable
W0721-00-021Interchangeable
interchangeable cross-reference
interchangeable
6515NCM082704Interchangeable
interchangeable cross-reference
interchangeable
323.45Interchangeable
interchangeable cross-reference
interchangeable
8730Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 757863?
757863 is a LOCKNUT,SKEIN.
What parts can replace 757863?
There are 5 known substitutes for 757863: 32345, W0721-00-021, 6515NCM082704 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 757863?
757863 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-477-5833. 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