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PartsTable / COMPONENT / BS78502-K5001
BS78502-K5001 ✓ 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 WASHER,FINISHING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, hole_diameter: 0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN, overall_height: 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN, outside_diameter: 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM 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 5310-00-769-7418, 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
BS78502-K5001
NSN: 5310-00-769-7418
FSC: 5310
CAGE: 15022 — ASI AEROSPACE GROUP, INC. DBA BARCO AVIATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
overall_height0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
outside_diameter0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
NSN5310-00-769-7418
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BS78502-K5001 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
OUTSIDE DIAMETER: 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
OVERALL HEIGHT0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
HOLE DIAMETER0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
698414Interchangeable
interchangeable cross-reference
interchangeable
663643Interchangeable
interchangeable cross-reference
interchangeable
31590Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BS78502-K5001?
BS78502-K5001 is a WASHER,FINISHING.
What parts can replace BS78502-K5001?
There are 3 known substitutes for BS78502-K5001: 698414, 663643, 31590. Substitute compatibility should be verified for your specific system.
What is the NSN for BS78502-K5001?
BS78502-K5001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-769-7418. 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