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12759-01281 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12759-01281: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include hole_diameter: 0.512 INCHES NOMINAL IN, outside_diameter: 0.869 INCHES NOMINAL IN, special_features: MATERIAL: HIGH ALLOY, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.125 INCHES NOMINAL IN, end_item_identification: 2320-01-531-2701;TRUCK,UTILITY-INTERNALLY TRANSPORTABLE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-598-5134, 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
12759-01281
NSN: 5310-01-598-5134
FSC: 5310 — Nuts and Washers
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
hole_diameter0.512 INCHES NOMINAL IN
outside_diameter0.869 INCHES NOMINAL IN
special_featuresMATERIAL: HIGH ALLOY
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.125 INCHES NOMINAL IN
end_item_identification2320-01-531-2701;TRUCK,UTILITY-INTERNALLY TRANSPORTABLE
part_name_assigned_by_controlling_agencyWASHER,LOCK
NSN5310-01-598-5134
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12759-01281 · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.869 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.125 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.512 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.869 INCHES NOMINAL IN
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
SPECIAL FEATURESMATERIAL: HIGH ALLOY
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,LOCK
END ITEM IDENTIFICATION2320-01-531-2701;TRUCK,UTILITY-INTERNALLY TRANSPORTABLE
HOLE DIAMETER0.512 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
33895Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12759-01281?
12759-01281 is a WASHER,LOCK.
What parts can replace 12759-01281?
There is 1 known substitute for 12759-01281: 33895. Substitute compatibility should be verified for your specific system.
What is the NSN for 12759-01281?
12759-01281 is cataloged in the U.S. Government catalog under NSN 5310-01-598-5134. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.