PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 503-8686-002
503-8686-002 ✓ 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 NUT,PLAIN,KNURLED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: KNURLED, nut_diameter: 0.510 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN, thread_series: UNEF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-208-5979, 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
503-8686-002
NSN: 5310-00-208-5979
FSC: 5310
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleKNURLED
nut_diameter0.510 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
thread_class2B
nut_thickness0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
thread_seriesUNEF
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
nominal_thread_size0.375 INCHES IN
thread_quantity_per_inch32
NSN5310-00-208-5979
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 503-8686-002 · 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
•
NUT THICKNESS: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
•
THREAD SERIES: UNEF
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT STYLE: KNURLED
•
THREAD DIRECTION: RIGHT-HAND
•
NUT DIAMETER: 0.510 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
SURFACE TREATMENT: NICKEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NUT THICKNESS0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
THREAD SERIESUNEF
NOMINAL THREAD SIZE0.375 INCHES IN
NUT STYLEKNURLED
THREAD DIRECTIONRIGHT-HAND
NUT DIAMETER0.510 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
SURFACE TREATMENTNICKEL OVERALL
THREAD CLASS2B
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
53248Interchangeable
interchangeable cross-reference
interchangeable
10148Interchangeable
interchangeable cross-reference
interchangeable
310-RTInterchangeable
interchangeable cross-reference
interchangeable
SMB157449Interchangeable
interchangeable cross-reference
interchangeable
63-0752Interchangeable
interchangeable cross-reference
interchangeable
9969583Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 503-8686-002?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 503-8686-002?
503-8686-002 is a NUT,PLAIN,KNURLED.
What parts can replace 503-8686-002?
There are 18 known substitutes for 503-8686-002: 53248, 10148, 310-RT and 15 more. Substitute compatibility should be verified for your specific system.
Is 503-8686-002 still available?
503-8686-002 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 503-8686-002

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026