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PartsTable / COMPONENT / R851PC19
R851PC19 ✓ 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: 3.000 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.500 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, small_end_diameter: 2.750 INCHES NOMINAL 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 5310-00-907-2343, 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
R851PC19
NSN: 5310-00-907-2343
FSC: 5310
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
nut_styleROUND
nut_diameter3.000 INCHES NOMINAL IN
thread_class2B
nut_thickness0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
small_end_diameter2.750 INCHES NOMINAL IN
drive_point_diameter0.281 INCHES NOMINAL IN
drive_point_quantity4
NSN5310-00-907-2343
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R851PC19 · 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 DIAMETER: 3.000 INCHES NOMINAL IN
•
DRIVE POINT DIAMETER: 0.281 INCHES NOMINAL IN
•
NUT THICKNESS: 0.500 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
NUT STYLE: ROUND
•
THREAD DIRECTION: RIGHT-HAND
•
SMALL END DIAMETER: 2.750 INCHES NOMINAL IN
•
DRIVE POINT QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
NUT DIAMETER3.000 INCHES NOMINAL IN
DRIVE POINT DIAMETER0.281 INCHES NOMINAL IN
NUT THICKNESS0.500 INCHES NOMINAL IN
THREAD CLASS2B
NUT STYLEROUND
THREAD DIRECTIONRIGHT-HAND
SMALL END DIAMETER2.750 INCHES NOMINAL IN
DRIVE POINT QUANTITY4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2149694Interchangeable
interchangeable cross-reference
interchangeable
F60Interchangeable
interchangeable cross-reference
interchangeable
RCF60Interchangeable
interchangeable cross-reference
interchangeable
ABDPFR184-2HPInterchangeable
interchangeable cross-reference
interchangeable
SC184FC5-5SCInterchangeable
interchangeable cross-reference
interchangeable
184DC1582BBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R851PC19?
R851PC19 is a NUT,PLAIN,ROUND.
What parts can replace R851PC19?
There are 6 known substitutes for R851PC19: 2149694, F60, RCF60 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R851PC19?
R851PC19 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-907-2343. 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