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PartsTable / COMPONENT / 6434101
6434101 ✓ 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 NOMINAL IN, overall_height: 0.100 INCHES NOMINAL IN, outside_diameter: 0.730 INCHES NOMINAL IN, style_designator: TWO PIECE INTERLOCKING, surface_treatment: DICHROMATE ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-556-0374, 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
6434101
NSN: 5310-01-556-0374
FSC: 5310
CAGE: 6W728 — BAE SYSTEMS SURVIVABILITY SYSTEMS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.450 INCHES NOMINAL IN
overall_height0.100 INCHES NOMINAL IN
outside_diameter0.730 INCHES NOMINAL IN
style_designatorTWO PIECE INTERLOCKING
surface_treatmentDICHROMATE ZINC OVERALL
end_item_identificationHMMWV M1114; A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
part_name_assigned_by_controlling_agencyWASHER,WEDGE LOCKING,PAIR
NSN5310-01-556-0374
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6434101 · 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
•
SURFACE TREATMENT: DICHROMATE ZINC OVERALL
•
OUTSIDE DIAMETER: 0.730 INCHES NOMINAL IN
•
STYLE DESIGNATOR: TWO PIECE INTERLOCKING
•
HOLE DIAMETER: 0.450 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,WEDGE LOCKING,PAIR
SURFACE TREATMENTDICHROMATE ZINC OVERALL
OUTSIDE DIAMETER0.730 INCHES NOMINAL IN
END ITEM IDENTIFICATIONHMMWV M1114; A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
STYLE DESIGNATORTWO PIECE INTERLOCKING
HOLE DIAMETER0.450 INCHES NOMINAL IN
OVERALL HEIGHT0.100 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
NL8Interchangeable
interchangeable cross-reference
interchangeable
12422608-009Interchangeable
interchangeable cross-reference
interchangeable
1NL10Interchangeable
interchangeable cross-reference
interchangeable
NL10Interchangeable
interchangeable cross-reference
interchangeable
12422608Interchangeable
interchangeable cross-reference
interchangeable
12422608-016Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6434101?
6434101 is a WASHER,LOCK.
What parts can replace 6434101?
There are 22 known substitutes for 6434101: NL8, 12422608-009, 1NL10 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6434101?
6434101 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-556-0374. 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