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422993 ✓ 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 NUT,SELF-LOCKING,GANG CHANNEL is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: GANG CHANNEL, SELF LOCKING, base_width: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, nut_height: 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, nut_length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, thread_class: 3B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-531-9099, 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
422993
NSN: 5310-00-531-9099
FSC: 5310
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleGANG CHANNEL, SELF LOCKING
base_width0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
nut_height0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
nut_length0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
base_thickness0.055 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
NSN5310-00-531-9099
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 422993 · 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 8
76022Interchangeable
interchangeable cross-reference
interchangeable
375093Interchangeable
interchangeable cross-reference
interchangeable
422996Interchangeable
interchangeable cross-reference
interchangeable
422995Interchangeable
interchangeable cross-reference
interchangeable
19474-5Interchangeable
interchangeable cross-reference
interchangeable
288618Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 422993?
422993 is a NUT,SELF-LOCKING,GANG CHANNEL.
What parts can replace 422993?
There are 8 known substitutes for 422993: 76022, 375093, 422996 and 5 more. Substitute compatibility should be verified for your specific system.
Is 422993 still available?
422993 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