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Technical Data Sheet
PartsTable / COMPONENT / 1260147-1
1260147-1 ✓ 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 GUARD,SPEC is a the manufacturer industrial component. Key specifications include hole_diameter: 10.2 MILLIMETERS NOMINAL MM, outside_diameter: 18.1 MILLIMETERS NOMINAL MM, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 2.2 MILLIMETERS NOMINAL MM, end_item_identification: CASE MODEL 721. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-549-6559, 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
1260147-1
NSN: 5310-01-549-6559
FSC: 5310
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
hole_diameter10.2 MILLIMETERS NOMINAL MM
outside_diameter18.1 MILLIMETERS NOMINAL MM
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness2.2 MILLIMETERS NOMINAL MM
end_item_identificationCASE MODEL 721
NSN5310-01-549-6559
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1260147-1 · 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 THICKNESS: 2.2 MILLIMETERS NOMINAL MM
•
HOLE DIAMETER: 10.2 MILLIMETERS NOMINAL MM
•
OUTSIDE DIAMETER: 18.1 MILLIMETERS NOMINAL MM
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS2.2 MILLIMETERS NOMINAL MM
HOLE DIAMETER10.2 MILLIMETERS NOMINAL MM
OUTSIDE DIAMETER18.1 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATIONCASE MODEL 721
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
A-A-52160Interchangeable
interchangeable cross-reference
interchangeable
A54Interchangeable
interchangeable cross-reference
interchangeable
14-0028Interchangeable
interchangeable cross-reference
interchangeable
96-0173Interchangeable
interchangeable cross-reference
interchangeable
0000140028#Interchangeable
interchangeable cross-reference
interchangeable
6515C7315AC#Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1260147-1?
1260147-1 is a GUARD,SPEC.
What parts can replace 1260147-1?
There are 7 known substitutes for 1260147-1: A-A-52160, A54, 14-0028 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1260147-1?
1260147-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-549-6559. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026