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Technical Data Sheet

12759-01284 — Technical Data Sheet

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— · 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: 0.875 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: YELLOW ZINC FINISH GRADE 8 HEX NUT.. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5310-01-597-6122, 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
12759-01284
NSN: 5310-01-597-6122
FSC: 5310
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.875 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresYELLOW ZINC FINISH GRADE 8 HEX NUT.
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats1.500 INCHES NOMINAL IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeFLAT
end_item_identificationMRAP BUFFALO MK2A2
NSN5310-01-597-6122
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12759-01284 · 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
•
SURFACE TREATMENT: ZINC OVERALL
•
NUT HEIGHT: 0.875 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 2B
•
THREAD DIRECTION: RIGHT-HAND
•
BEARING SURFACE TYPE: FLAT
•
WIDTH ACROSS FLATS: 1.500 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 8
TECHNICAL CHARACTERISTICS
SURFACE TREATMENTZINC OVERALL
NUT HEIGHT0.875 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
BEARING SURFACE TYPEFLAT
WIDTH ACROSS FLATS1.500 INCHES NOMINAL IN
THREAD QUANTITY PER INCH8
NOMINAL THREAD SIZE1.000 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
A-A-311InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
36420InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
GGG-T-581InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3642048U201000L2220000L30InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12759-01284?
12759-01284 is a NUT,PLAIN,HEXAGON.
What parts can replace 12759-01284?
There are 4 known substitutes for 12759-01284: A-A-311, 36420, GGG-T-581 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12759-01284?
12759-01284 is cataloged in the Federal Logistics Information System under NSN 5310-01-597-6122. This indicates validated use in U.S. government and defense supply chains.
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