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PartsTable / COMPONENT / 4197500-012
4197500-012 ✓ 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,FLAT is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-595-6211, 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
4197500-012
NSN: 5310-00-595-6211
FSC: 5310
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
Part Number4197500-012
NSN5310-00-595-6211
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4197500-012 · 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 33
BS11110291Interchangeable
interchangeable cross-reference
interchangeable
400728Interchangeable
interchangeable cross-reference
interchangeable
7705Interchangeable
interchangeable cross-reference
interchangeable
405KDInterchangeable
interchangeable cross-reference
interchangeable
FFB171/06J05B2EInterchangeable
interchangeable cross-reference
interchangeable
3-20A CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4197500-012?
4197500-012 is a WASHER,FLAT.
What parts can replace 4197500-012?
There are 33 known substitutes for 4197500-012: BS11110291, 400728, 7705 and 30 more. Substitute compatibility should be verified for your specific system.
Is 4197500-012 still available?
4197500-012 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