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PartsTable / COMPONENT / 10313530
10313530 ✓ 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,SPLIT is a the manufacturer industrial component. Key specifications include hole_diameter: 0.149 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN, heat_treatment: SPRING TEMPER, outside_diameter: 0.264 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN, style_designator: SPLIT, surface_treatment: CADMIUM OVERALL, material_thickness: 0.012 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-143-6491, 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
10313530
NSN: 5310-00-143-6491
FSC: 5310
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
hole_diameter0.149 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
heat_treatmentSPRING TEMPER
outside_diameter0.264 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
style_designatorSPLIT
surface_treatmentCADMIUM OVERALL
material_thickness0.012 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN
distance_across_split_opening0.025 INCHES NOMINAL IN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-143-6491
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10313530 · 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: CADMIUM OVERALL
•
OUTSIDE DIAMETER: 0.264 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
•
DISTANCE ACROSS SPLIT OPENING: 0.025 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.149 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
HEAT TREATMENT: SPRING TEMPER
•
MATERIAL THICKNESS: 0.012 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
OUTSIDE DIAMETER0.264 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
DISTANCE ACROSS SPLIT OPENING0.025 INCHES NOMINAL IN
HOLE DIAMETER0.149 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
HEAT TREATMENTSPRING TEMPER
MATERIAL THICKNESS0.012 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
5531Interchangeable
interchangeable cross-reference
interchangeable
50790Interchangeable
interchangeable cross-reference
interchangeable
181W27Interchangeable
interchangeable cross-reference
interchangeable
LL236-12Interchangeable
interchangeable cross-reference
interchangeable
74269040001Interchangeable
interchangeable cross-reference
interchangeable
5S3-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10313530?
10313530 is a WASHER,SPLIT.
What parts can replace 10313530?
There are 16 known substitutes for 10313530: 5531, 50790, 181W27 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10313530?
10313530 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-143-6491. 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