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10201731 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-549-5363, 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
10201731
NSN: 5315-01-549-5363
FSC: 5315
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
Part Number10201731
NSN5315-01-549-5363
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10201731 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
A1405B2Interchangeable
interchangeable cross-reference
interchangeable
43-959Interchangeable
interchangeable cross-reference
interchangeable
AA753Interchangeable
interchangeable cross-reference
interchangeable
20C2937-1Interchangeable
interchangeable cross-reference
interchangeable
5014-1Interchangeable
interchangeable cross-reference
interchangeable
2020-5136-64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10201731?
10201731 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 10201731?
There are 20 known substitutes for 10201731: A1405B2, 43-959, AA753 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10201731?
10201731 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-549-5363. 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