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5125771 ✓ 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,THRUST is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL; 1-3/4 IN. OD,1-5/32 IN.

ID,5/32 IN. THK; W/ONE 13/32 IN. EAR ON OD 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 5310-00-999-2397, 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
5125771
NSN: 5310-00-999-2397
FSC: 5310
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL; 1-3/4 IN. OD,1-5/32 IN. ID,5/32 IN. THK; W/ONE 13/32 IN. EAR ON OD IN
NSN5310-00-999-2397
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5125771 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; 1-3/4 IN. OD,1-5/32 IN. ID,5/32 IN. THK; W/ONE 13/32 IN. EAR ON OD IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; 1-3/4 IN. OD,1-5/32 IN. ID,5/32 IN. THK; W/ONE 13/32 IN. EAR ON OD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
74S77-030Interchangeable
interchangeable cross-reference
interchangeable
292103Interchangeable
interchangeable cross-reference
interchangeable
RS718-030Interchangeable
interchangeable cross-reference
interchangeable
33377Interchangeable
interchangeable cross-reference
interchangeable
1093074E00Interchangeable
interchangeable cross-reference
interchangeable
929-2035Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5125771?
5125771 is a WASHER,THRUST.
What parts can replace 5125771?
There are 9 known substitutes for 5125771: 74S77-030, 292103, RS718-030 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5125771?
5125771 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-999-2397. 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