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PartsTable / COMPONENT / 5310003025656
5310003025656 ✓ 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,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, hole_diameter: 0.394 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN, surface_finish: 40.0 MICROINCHES TOP, shoulder_height: 0.046 INCHES NOMINAL IN, outside_diameter: 1.125 INCHES NOMINAL IN, style_designator: SHOULDERED AND RECESSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-302-5656, 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
5310003025656
NSN: 5310-00-302-5656
FSC: 5310
CAGE: A00AM — E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
hole_diameter0.394 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
surface_finish40.0 MICROINCHES TOP
shoulder_height0.046 INCHES NOMINAL IN
outside_diameter1.125 INCHES NOMINAL IN
style_designatorSHOULDERED AND RECESSED
material_thickness0.019 INCHES NOMINAL IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-302-5656
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310003025656 · 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 FINISH: 100.0 MICROINCHES SHOULDER FACE
•
OUTSIDE DIAMETER: 1.125 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.394 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL: STEEL COMP 302 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH100.0 MICROINCHES SHOULDER FACE
OUTSIDE DIAMETER1.125 INCHES NOMINAL IN
SURFACE FINISH100.0 MICROINCHES INNER
HOLE DIAMETER0.394 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED AND RECESSED
SURFACE FINISH100.0 MICROINCHES OUTER
MATERIALSTEEL COMP 302 OVERALL
SURFACE FINISH100.0 MICROINCHES BOTTOM
SHOULDER HEIGHT0.046 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
4589K91Interchangeable
interchangeable cross-reference
interchangeable
839-131CInterchangeable
interchangeable cross-reference
interchangeable
5118-3-4 1X3/4Interchangeable
interchangeable cross-reference
interchangeable
5932400Interchangeable
interchangeable cross-reference
interchangeable
15A7138Interchangeable
interchangeable cross-reference
interchangeable
A1440Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5310003025656?
5310003025656 is a WASHER,SHOULDERED AND RECESSED.
What parts can replace 5310003025656?
There are 23 known substitutes for 5310003025656: 4589K91, 839-131C, 5118-3-4 1X3/4 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5310003025656?
5310003025656 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-302-5656. 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