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PartsTable / COMPONENT / B6601AITEM13
B6601AITEM13 ✓ 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,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.842 INCHES MINIMUM AND 0.847 INCHES MAXIMUM IN, outside_diameter: 1.838 INCHES MINIMUM AND 1.843 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.0239 INCHES NOMINAL IN, external_prebent_key_width: 0.219 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 5310-00-218-4924, 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
B6601AITEM13
NSN: 5310-00-218-4924
FSC: 5310
CAGE: 38151 — MARATHON ELECTRIC, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.842 INCHES MINIMUM AND 0.847 INCHES MAXIMUM IN
outside_diameter1.838 INCHES MINIMUM AND 1.843 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.0239 INCHES NOMINAL IN
external_prebent_key_width0.219 INCHES NOMINAL IN
external_prebent_key_length0.063 INCHES NOMINAL IN
NSN5310-00-218-4924
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B6601AITEM13 · 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
•
MATERIAL THICKNESS: 0.0239 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.842 INCHES MINIMUM AND 0.847 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 1.838 INCHES MINIMUM AND 1.843 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY LENGTH: 0.063 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY WIDTH: 0.219 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.0239 INCHES NOMINAL IN
HOLE DIAMETER0.842 INCHES MINIMUM AND 0.847 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER1.838 INCHES MINIMUM AND 1.843 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY LENGTH0.063 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.219 INCHES NOMINAL IN
STYLE DESIGNATORKEY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
8040PL1183731Interchangeable
interchangeable cross-reference
interchangeable
MIL-A-5540 CL3FMBInterchangeable
interchangeable cross-reference
interchangeable
MIL-A-5540Interchangeable
interchangeable cross-reference
interchangeable
G9623P56Interchangeable
interchangeable cross-reference
interchangeable
70343-3Interchangeable
interchangeable cross-reference
interchangeable
543405Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B6601AITEM13?
B6601AITEM13 is a WASHER,KEY.
What parts can replace B6601AITEM13?
There are 22 known substitutes for B6601AITEM13: 8040PL1183731, MIL-A-5540 CL3FMB, MIL-A-5540 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B6601AITEM13?
B6601AITEM13 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-218-4924. 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