PartsTable
Technical Data Sheet
12759-01286 ✓ 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,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.438 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, special_features: YELLOW ZINC FINISH GRADE 8 FINISHED HEX NUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-597-5800, 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
12759-01286
NSN: 5310-01-597-5800
FSC: 5310
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.438 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
special_featuresYELLOW ZINC FINISH GRADE 8 FINISHED HEX NUT
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats0.750 INCHES NOMINAL IN
nominal_thread_size0.500 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch20
NSN5310-01-597-5800
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12759-01286 · 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
MATERIAL: STEEL OVERALL
THREAD DIRECTION: RIGHT-HAND
WIDTH ACROSS FLATS: 0.750 INCHES NOMINAL IN
NUT HEIGHT: 0.438 INCHES NOMINAL IN
NUT STYLE: HEXAGON
THREAD CLASS: 2B
BEARING SURFACE TYPE: FLAT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
NUT HEIGHT0.438 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
BEARING SURFACE TYPEFLAT
SPECIAL FEATURESYELLOW ZINC FINISH GRADE 8 FINISHED HEX NUT
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD QUANTITY PER INCH20
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
27009HInterchangeable
interchangeable cross-reference
interchangeable
RA99000Interchangeable
interchangeable cross-reference
interchangeable
XHB-99000Interchangeable
interchangeable cross-reference
interchangeable
36460Interchangeable
interchangeable cross-reference
interchangeable
7044Interchangeable
interchangeable cross-reference
interchangeable
FI 36460Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12759-01286?
12759-01286 is a NUT,PLAIN,HEXAGON.
What parts can replace 12759-01286?
There are 7 known substitutes for 12759-01286: 27009H, RA99000, XHB-99000 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12759-01286?
12759-01286 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-597-5800. This indicates validated use in U.S. government and defense supply chains.
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