PartsTable
Technical Data Sheet
443339 ✓ 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: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: HEXAGON, nut_height: 0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-044-3339, 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
443339
NSN: 5310-00-044-3339
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_styleHEXAGON
nut_height0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
width_across_flats0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
NSN5310-00-044-3339
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 443339 · 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
NUT STYLE: HEXAGON
NOMINAL THREAD SIZE: 0.500 INCHES IN
THREAD QUANTITY PER INCH: 13
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPE: CHAMFERED
NUT HEIGHT: 0.438 INCHES NOMINAL IN
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT STYLEHEXAGON
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD QUANTITY PER INCH13
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED
NUT HEIGHT0.438 INCHES NOMINAL IN
THREAD CLASS2B
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
MS51922-33Interchangeable
interchangeable cross-reference
interchangeable
030051Interchangeable
interchangeable cross-reference
interchangeable
443339Interchangeable
interchangeable cross-reference
interchangeable
4D1099Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 443339?
443339 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 443339?
There are 4 known substitutes for 443339: MS51922-33, 030051, 443339 and 1 more. Substitute compatibility should be verified for your specific system.
Is 443339 still available?
443339 is currently cancelled.
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