PartsTable
Technical Data Sheet
49NU-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: 1.250 INCHES MINIMUM AND 1.312 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 5310-01-066-2479, 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
49NU-168
NSN: 5310-01-066-2479
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL EXCEPT INSERT
nut_styleHEXAGON
nut_height1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
thread_class3B
thread_seriesUNJC
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats1.602 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch8
NSN5310-01-066-2479
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 49NU-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
THREAD CLASS: 3B
NOMINAL THREAD SIZE: 1.000 INCHES IN
BEARING SURFACE TYPE: CHAMFERED
MATERIAL: STEEL OVERALL EXCEPT INSERT
WIDTH ACROSS FLATS: 1.602 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH: 8
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD CLASS3B
NOMINAL THREAD SIZE1.000 INCHES IN
BEARING SURFACE TYPECHAMFERED
MATERIALSTEEL OVERALL EXCEPT INSERT
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
WIDTH ACROSS FLATS1.602 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH8
TEMP RATING250.0 FAHRENHEIT MAXIMUM DEGF
NUT HEIGHT1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
6412Interchangeable
interchangeable cross-reference
interchangeable
PB2086T0PB2088Interchangeable
interchangeable cross-reference
interchangeable
PB2088Interchangeable
interchangeable cross-reference
interchangeable
928088-4Interchangeable
interchangeable cross-reference
interchangeable
82482Interchangeable
interchangeable cross-reference
interchangeable
WL-A68Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 49NU-168?
49NU-168 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 49NU-168?
There are 12 known substitutes for 49NU-168: 6412, PB2086T0PB2088, PB2088 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 49NU-168?
49NU-168 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-066-2479. This indicates validated use in U.S. government and defense supply chains.
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