PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 2986A
2986A ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.375 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-404-3786, 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
2986A
NSN: 5310-00-404-3786
FSC: 5310
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.375 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
width_across_flats0.938 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch18
NSN5310-00-404-3786
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2986A · 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 HEIGHT: 0.375 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
THREAD QUANTITY PER INCH: 18
•
WIDTH ACROSS FLATS: 0.938 INCHES NOMINAL IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD CLASS: 2B
•
THREAD SERIES: UNF
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
TECHNICAL CHARACTERISTICS (FLIS)
NUT HEIGHT0.375 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD QUANTITY PER INCH18
WIDTH ACROSS FLATS0.938 INCHES NOMINAL IN
BEARING SURFACE TYPECHAMFERED
THREAD CLASS2B
THREAD SERIESUNF
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT STYLEHEXAGON
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
9S1354Interchangeable
interchangeable cross-reference
interchangeable
145036Interchangeable
interchangeable cross-reference
interchangeable
451079Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 2986A?
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 2986A?
2986A is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 2986A?
There are 3 known substitutes for 2986A: 9S1354, 145036, 451079. Substitute compatibility should be verified for your specific system.
What is the NSN for 2986A?
2986A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-404-3786. This indicates validated use in U.S. government and defense supply chains.
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 — 2986A

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