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Technical Data Sheet
PartsTable / COMPONENT / 004300-05
004300-05 ✓ 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,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 1.575 INCHES NOMINAL IN, heat_treatment: AS FABRICATED, overall_height: 0.140 INCHES NOMINAL IN, outside_diameter: 2.028 INCHES NOMINAL IN, material_thickness: 0.069 INCHES NOMINAL 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 5310-00-188-6523, 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
004300-05
NSN: 5310-00-188-6523
FSC: 5310
CAGE: 56065 — LEESON ELECTRIC CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.575 INCHES NOMINAL IN
heat_treatmentAS FABRICATED
overall_height0.140 INCHES NOMINAL IN
outside_diameter2.028 INCHES NOMINAL IN
material_thickness0.069 INCHES NOMINAL IN
material_document_and_classificationQQ-S-777 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-188-6523
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 004300-05 · 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 DOCUMENT AND CLASSIFICATION: QQ-S-777 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
HEAT TREATMENT: AS FABRICATED
•
MATERIAL THICKNESS: 0.069 INCHES NOMINAL IN
•
HOLE DIAMETER: 1.575 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.028 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-777 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
HEAT TREATMENTAS FABRICATED
MATERIAL THICKNESS0.069 INCHES NOMINAL IN
HOLE DIAMETER1.575 INCHES NOMINAL IN
OUTSIDE DIAMETER2.028 INCHES NOMINAL IN
OVERALL HEIGHT0.140 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
26051Interchangeable
interchangeable cross-reference
interchangeable
695371Interchangeable
interchangeable cross-reference
interchangeable
N26051Interchangeable
interchangeable cross-reference
interchangeable
3-6866-2Interchangeable
interchangeable cross-reference
interchangeable
910FInterchangeable
interchangeable cross-reference
interchangeable
910F SIZE 1 INCHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 004300-05?
004300-05 is a WASHER,SPRING TENSION.
What parts can replace 004300-05?
There are 8 known substitutes for 004300-05: 26051, 695371, N26051 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 004300-05?
004300-05 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-188-6523. 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