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PartsTable / COMPONENT / Z13419-6
Z13419-6 ✓ 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL, nut_style: HEXAGON, nut_height: 0.450 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN, temp_rating: 800.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-008-6052, 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
Z13419-6
NSN: 5310-01-008-6052
FSC: 5310
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
nut_styleHEXAGON
nut_height0.450 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
temp_rating800.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNF
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
width_across_flats0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
NSN5310-01-008-6052
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: Z13419-6 · 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
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
WIDTH ACROSS FLATS: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
SURFACE TREATMENT: SILVER OVERALL
•
MATERIAL: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
WIDTH ACROSS FLATS0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.375 INCHES IN
BEARING SURFACE TYPECHAMFERED
SURFACE TREATMENTSILVER OVERALL
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
NUT STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
PRECIOUS MATERIALSILVER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
109Interchangeable
interchangeable cross-reference
interchangeable
2065-16Interchangeable
interchangeable cross-reference
interchangeable
CT1087Interchangeable
interchangeable cross-reference
interchangeable
78758Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Z13419-6?
Z13419-6 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace Z13419-6?
There are 4 known substitutes for Z13419-6: 109, 2065-16, CT1087 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for Z13419-6?
Z13419-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-008-6052. 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