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Technical Data Sheet
49NE-168 ✓ 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 EXCEPT INSERT, nut_style: HEXAGON, nut_height: 1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B, thread_series: UNJC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-066-3923, 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
49NE-168
NSN: 5310-01-066-3923
FSC: 5310
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL EXCEPT INSERT
nut_styleHEXAGON
nut_height1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
thread_class3B
thread_seriesUNJC
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch8
NSN5310-01-066-3923
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 49NE-168 · 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 WITH NONMETALLIC INSERT
BEARING SURFACE TYPE: CHAMFERED
TEMP RATING: 250.0 FAHRENHEIT MAXIMUM DEGF
THREAD DIRECTION: RIGHT-HAND
NOMINAL THREAD SIZE: 1.000 INCHES IN
MATERIAL: STEEL OVERALL EXCEPT INSERT
THREAD QUANTITY PER INCH: 8
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
BEARING SURFACE TYPECHAMFERED
TEMP RATING250.0 FAHRENHEIT MAXIMUM DEGF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.000 INCHES IN
MATERIALSTEEL OVERALL EXCEPT INSERT
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
THREAD QUANTITY PER INCH8
WIDTH ACROSS FLATS1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
NUT HEIGHT1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
A-A-52598Interchangeable
interchangeable cross-reference
interchangeable
77GRADET12INCPLInterchangeable
interchangeable cross-reference
interchangeable
MILC10387Interchangeable
interchangeable cross-reference
interchangeable
13120Interchangeable
interchangeable cross-reference
interchangeable
135225-1Interchangeable
interchangeable cross-reference
interchangeable
20629Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 49NE-168?
49NE-168 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 49NE-168?
There are 15 known substitutes for 49NE-168: A-A-52598, 77GRADET12INCPL, MILC10387 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 49NE-168?
49NE-168 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-066-3923. This indicates validated use in U.S. government and defense supply chains.
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