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PartsTable / COMPONENT / B18.16.6-1/4-20-NE-GRADEN5-FE/Z
B18.16.6-1/4-20-NE-GRADEN5-FE/Z ✓ 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 B18.16.6-1/4-20-NE-GRADEN5-FE/Z 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 5310-01-650-8429, 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
B18.16.6-1/4-20-NE-GRADEN5-FE/Z
NSN: 5310-01-650-8429
FSC: 5310
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
Part NumberB18.16.6-1/4-20-NE-GRADEN5-FE/Z
NSN5310-01-650-8429
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B18.16.6-1/4-20-NE-GRADEN5-FE/Z · 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 7
41985Interchangeable
interchangeable cross-reference
interchangeable
BS-41985Interchangeable
interchangeable cross-reference
interchangeable
12571164Interchangeable
interchangeable cross-reference
interchangeable
41-110Interchangeable
interchangeable cross-reference
interchangeable
41985-1Interchangeable
interchangeable cross-reference
interchangeable
NNZSC506-01Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B18.16.6-1/4-20-NE-GRADEN5-FE/Z?
B18.16.6-1/4-20-NE-GRADEN5-FE/Z is a B18.16.6-1/4-20-NE-GRADEN5-FE/Z.
What parts can replace B18.16.6-1/4-20-NE-GRADEN5-FE/Z?
There are 7 known substitutes for B18.16.6-1/4-20-NE-GRADEN5-FE/Z: 41985, BS-41985, 12571164 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B18.16.6-1/4-20-NE-GRADEN5-FE/Z?
B18.16.6-1/4-20-NE-GRADEN5-FE/Z is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-650-8429. 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