PartsTable
Technical Data Sheet
7B1756 ✓ 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 nut_style: HEXAGON, nut_height: 0.732 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN, lubrication: SOLUBLE LUBRICANT, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-365-2276, 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
7B1756
NSN: 5310-00-365-2276
FSC: 5310
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
nut_styleHEXAGON
nut_height0.732 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
lubricationSOLUBLE LUBRICANT
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
countersink_angle88.0 DEGREES NOMINAL NUT
surface_treatmentCADMIUM OVERALL EXCEPT INSERT
width_across_flats0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
NSN5310-00-365-2276
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7B1756 · 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 STYLE: HEXAGON
THREAD CLASS: 3B
THREAD SERIES: UNF
THREAD QUANTITY PER INCH: 18
NOMINAL THREAD SIZE: 0.625 INCHES IN
THREAD DIRECTION: RIGHT-HAND
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
SURFACE TREATMENT: ZINC NUT
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD CLASS3B
THREAD SERIESUNF
THREAD QUANTITY PER INCH18
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
SURFACE TREATMENTZINC NUT
MATERIALFIBER LOCKING INSERT
MATERIALSTEEL NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
10082669Interchangeable
interchangeable cross-reference
interchangeable
7B1756Interchangeable
interchangeable cross-reference
interchangeable
F52NE108Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7B1756?
7B1756 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 7B1756?
There are 3 known substitutes for 7B1756: 10082669, 7B1756, F52NE108. Substitute compatibility should be verified for your specific system.
What is the NSN for 7B1756?
7B1756 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-365-2276. This indicates validated use in U.S. government and defense supply chains.
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