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PartsTable / COMPONENT / 10490323
10490323 ✓ 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include color: BLACK OVERALL, material: STEEL OVERALL, hole_diameter: 0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM, outside_diameter: 0.869 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-733-1764, 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
10490323
NSN: 5310-01-733-1764
FSC: 5310
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
colorBLACK OVERALL
materialSTEEL OVERALL
hole_diameter0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
outside_diameter0.869 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness0.125 INCHES MINIMUM IN
end_item_identification5895-017201069
material_document_and_classificationAISI 1055-1065, MN IS ALLOWED MFR REF SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencySPLIT LOCK WASHER
surface_treatment_document_and_classificationMAGNI BLACK 575 MFR REF SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-733-1764
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10490323 · 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: 0.125 INCHES MINIMUM IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MAGNI BLACK 575 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 1055-1065, MN IS ALLOWED MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
COLOR: BLACK OVERALL
•
OUTSIDE DIAMETER: 0.869 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.125 INCHES MINIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMAGNI BLACK 575 MFR REF SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 1055-1065, MN IS ALLOWED MFR REF SINGLE MATERIAL RESPONSE OVERALL
END ITEM IDENTIFICATION5895-017201069
COLORBLACK OVERALL
OUTSIDE DIAMETER0.869 INCHES MAXIMUM IN
SURFACE TREATMENTZINC OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
33625Interchangeable
interchangeable cross-reference
interchangeable
11697428Interchangeable
interchangeable cross-reference
interchangeable
NA768822Interchangeable
interchangeable cross-reference
interchangeable
38600Interchangeable
interchangeable cross-reference
interchangeable
P-500Interchangeable
interchangeable cross-reference
interchangeable
4001269Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10490323?
10490323 is a WASHER,LOCK.
What parts can replace 10490323?
There are 6 known substitutes for 10490323: 33625, 11697428, NA768822 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10490323?
10490323 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-733-1764. 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