PartsTable
Technical Data Sheet
418202-1 ✓ 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 OVERALL, nut_style: HEXAGON, nut_height: 1.938 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-191-3699, 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
418202-1
NSN: 5310-00-191-3699
FSC: 5310
CAGE: 1BH50 — LIGI TOOL & ENGINEERING, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height1.938 INCHES NOMINAL IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
special_featuresITEM IS A NON-AVIATION CRITICAL SAFETY ITEM (SCI) WHOSE FAILURE WILL RESULT IN SERIOUS DAMAGE TO EQUIPMENT OR SERIOUS INJURY OR DEATH TO PERSONNEL.
thread_directionRIGHT-HAND
width_across_flats2.375 INCHES NOMINAL IN
nominal_thread_size1.500 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-00-191-3699
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 418202-1 · 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
NUT HEIGHT: 1.938 INCHES NOMINAL IN
NOMINAL THREAD SIZE: 1.500 INCHES IN
CRITICALITY CODE JUSTIFICATION: FEAT
BEARING SURFACE TYPE: CHAMFERED
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD QUANTITY PER INCH: 6
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NUT HEIGHT1.938 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.500 INCHES IN
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESITEM IS A NON-AVIATION CRITICAL SAFETY ITEM (SCI) WHOSE FAILURE WILL RESULT IN SERIOUS DAMAGE TO EQUIPMENT OR SERIOUS INJURY OR DEATH TO PERSONNEL.
BEARING SURFACE TYPECHAMFERED
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD QUANTITY PER INCH6
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
6002-154 PIECE 5Interchangeable
interchangeable cross-reference
interchangeable
211070742Interchangeable
interchangeable cross-reference
interchangeable
6404856 FIND 15L1Interchangeable
interchangeable cross-reference
interchangeable
49NU246Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 418202-1?
418202-1 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 418202-1?
There are 4 known substitutes for 418202-1: 6002-154 PIECE 5, 211070742, 6404856 FIND 15L1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 418202-1?
418202-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-191-3699. This indicates validated use in U.S. government and defense supply chains.
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