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Technical Data Sheet
PartsTable / COMPONENT / 850-1040
850-1040 ✓ 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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-582-5965, 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
850-1040
NSN: 5310-00-582-5965
FSC: 5310
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
Part Number850-1040
NSN5310-00-582-5965
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 850-1040 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
30X562Interchangeable
interchangeable cross-reference
interchangeable
12X199Interchangeable
interchangeable cross-reference
interchangeable
3064686Interchangeable
interchangeable cross-reference
interchangeable
T1913Interchangeable
interchangeable cross-reference
interchangeable
42-6880-100-150Interchangeable
interchangeable cross-reference
interchangeable
K2412Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 850-1040?
850-1040 is a WASHER,LOCK.
What parts can replace 850-1040?
There are 35 known substitutes for 850-1040: 30X562, 12X199, 3064686 and 32 more. Substitute compatibility should be verified for your specific system.
Is 850-1040 still available?
850-1040 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026