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429619 ✓ 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,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-639-7544, 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
429619
NSN: 5310-00-639-7544
FSC: 5310
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch20
NSN5310-00-639-7544
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 429619 · 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: STEEL OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH ACROSS FLATS: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
BEARING SURFACE TYPE: WASHER FACED
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 20
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.500 INCHES IN
BEARING SURFACE TYPEWASHER FACED
THREAD SERIESUNF
THREAD QUANTITY PER INCH20
NUT STYLEHEXAGON
NUT HEIGHT0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
137142Interchangeable
interchangeable cross-reference
interchangeable
345898PC516Interchangeable
interchangeable cross-reference
interchangeable
N48Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
2410 5/32Interchangeable
interchangeable cross-reference
interchangeable
C12052Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 429619?
429619 is a NUT,PLAIN,HEXAGON.
What parts can replace 429619?
There are 20 known substitutes for 429619: 137142, 345898PC516, N48 and 17 more. Substitute compatibility should be verified for your specific system.
Is 429619 still available?
429619 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