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R42856 ✓ 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: 0.440 INCHES NOMINAL IN, overall_height: 0.040 INCHES NOMINAL IN, outside_diameter: 0.618 INCHES NOMINAL IN, style_designator: SPRING TENSION, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-753-4402, 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
R42856
NSN: 5310-00-753-4402
FSC: 5310
CAGE: 92830 — BARNES GROUP INC. DBA ASSOCIATED SPRING DIV ASSOCIATED SPRING BRISTOL (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.440 INCHES NOMINAL IN
overall_height0.040 INCHES NOMINAL IN
outside_diameter0.618 INCHES NOMINAL IN
style_designatorSPRING TENSION
surface_treatmentCADMIUM OVERALL
material_thickness0.008 INCHES NOMINAL IN
NSN5310-00-753-4402
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R42856 · 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
•
OUTSIDE DIAMETER: 0.618 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPRING TENSION
•
HOLE DIAMETER: 0.440 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
MATERIAL THICKNESS: 0.008 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.618 INCHES NOMINAL IN
STYLE DESIGNATORSPRING TENSION
OVERALL HEIGHT0.040 INCHES NOMINAL IN
HOLE DIAMETER0.440 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
MATERIAL THICKNESS0.008 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
SSR4RA3P15L01Interchangeable
interchangeable cross-reference
interchangeable
R4XR1JInterchangeable
interchangeable cross-reference
interchangeable
3110001599239Interchangeable
interchangeable cross-reference
interchangeable
23060Interchangeable
interchangeable cross-reference
interchangeable
504C-4Interchangeable
interchangeable cross-reference
interchangeable
ER4-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R42856?
R42856 is a WASHER,SPRING TENSION.
What parts can replace R42856?
There are 31 known substitutes for R42856: SSR4RA3P15L01, R4XR1J, 3110001599239 and 28 more. Substitute compatibility should be verified for your specific system.
Is R42856 still available?
R42856 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026