PartsTable
Technical Data Sheet
PartsTable / COMPONENT / R56810
R56810 ✓ 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,ROUND is a the manufacturer industrial component. Key specifications include nut_style: ROUND, nut_diameter: 2.375 INCHES NOMINAL IN, nut_thickness: 1.781 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, small_end_diameter: 1.656 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: NAVY SPECIAL PROJECT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-959-5238, 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
R56810
NSN: 5310-00-959-5238
FSC: 5310
CAGE: 88807 — NEAC COMPRESSOR SERVICE USA INC (USA)
SPECIFICATIONS
nut_styleROUND
nut_diameter2.375 INCHES NOMINAL IN
nut_thickness1.781 INCHES NOMINAL IN
thread_directionRIGHT-HAND
small_end_diameter1.656 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-959-5238
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R56810 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
NUT DIAMETER: 2.375 INCHES NOMINAL IN
•
NUT STYLE: ROUND
•
NUT THICKNESS: 1.781 INCHES NOMINAL IN
•
SMALL END DIAMETER: 1.656 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD DIRECTIONRIGHT-HAND
NUT DIAMETER2.375 INCHES NOMINAL IN
NUT STYLEROUND
NUT THICKNESS1.781 INCHES NOMINAL IN
SMALL END DIAMETER1.656 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
5330000050858Interchangeable
interchangeable cross-reference
interchangeable
211253Interchangeable
interchangeable cross-reference
interchangeable
2297HXInterchangeable
interchangeable cross-reference
interchangeable
811-0002-001Interchangeable
interchangeable cross-reference
interchangeable
5231Interchangeable
interchangeable cross-reference
interchangeable
S2407-607127PC58Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy R56810?
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 R56810?
R56810 is a NUT,PLAIN,ROUND.
What parts can replace R56810?
There are 20 known substitutes for R56810: 5330000050858, 211253, 2297HX and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R56810?
R56810 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-959-5238. 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 — R56810

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