PartsTable
Technical Data Sheet
2F8616 ✓ 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: 0.318 INCHES MINIMUM AND 0.469 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 5310-00-262-8305, 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
2F8616
NSN: 5310-00-262-8305
FSC: 5310
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
nut_styleHEXAGON
nut_height0.318 INCHES MINIMUM AND 0.469 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_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
NSN5310-00-262-8305
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2F8616 · 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
THREAD QUANTITY PER INCH: 24
THREAD SERIES: UNF
NOMINAL THREAD SIZE: 0.375 INCHES IN
MATERIAL: STEEL COMP 1212 NUT
WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN
SURFACE TREATMENT: CADMIUM NUT
THREAD DIRECTION: RIGHT-HAND
NUT HEIGHT: 0.453 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
THREAD SERIESUNF
NOMINAL THREAD SIZE0.375 INCHES IN
MATERIALSTEEL COMP 1212 NUT
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM NUT
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.453 INCHES NOMINAL IN
THREAD CLASS3B
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
7058752Interchangeable
interchangeable cross-reference
interchangeable
53957Interchangeable
interchangeable cross-reference
interchangeable
52NE064Interchangeable
interchangeable cross-reference
interchangeable
5310PL0530873Interchangeable
interchangeable cross-reference
interchangeable
MS21044N6Interchangeable
interchangeable cross-reference
interchangeable
5310PL2091896Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2F8616?
2F8616 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 2F8616?
There are 7 known substitutes for 2F8616: 7058752, 53957, 52NE064 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2F8616?
2F8616 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-262-8305. This indicates validated use in U.S. government and defense supply chains.
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