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Technical Data Sheet
PartsTable / COMPONENT / 850-0055
850-0055 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.450 INCHES NOMINAL0.450 INCHES NOMINAL IN, outside_diameter: 0.770 INCHES NOMINAL0.770 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.115 INCHES NOMINAL0.115 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 5310-01-051-6861, 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
850-0055
NSN: 5310-01-051-6861
FSC: 5310
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.450 INCHES NOMINAL0.450 INCHES NOMINAL IN
outside_diameter0.770 INCHES NOMINAL0.770 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.115 INCHES NOMINAL0.115 INCHES NOMINAL IN
NSN5310-01-051-6861
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 850-0055 · 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
•
HOLE DIAMETER: 0.450 INCHES NOMINAL0.450 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.770 INCHES NOMINAL0.770 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL THICKNESS: 0.115 INCHES NOMINAL0.115 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.450 INCHES NOMINAL0.450 INCHES NOMINAL IN
OUTSIDE DIAMETER0.770 INCHES NOMINAL0.770 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL THICKNESS0.115 INCHES NOMINAL0.115 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
85055Interchangeable
interchangeable cross-reference
interchangeable
697TTInterchangeable
interchangeable cross-reference
interchangeable
5967867ITEM9Interchangeable
interchangeable cross-reference
interchangeable
614-1105AInterchangeable
interchangeable cross-reference
interchangeable
CU09609283Interchangeable
interchangeable cross-reference
interchangeable
6238502Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 850-0055?
850-0055 is a WASHER,LOCK.
What parts can replace 850-0055?
There are 11 known substitutes for 850-0055: 85055, 697TT, 5967867ITEM9 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 850-0055?
850-0055 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-051-6861. 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