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8517ITEM48 ✓ 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: 0.938 INCHES NOMINAL IN, overall_height: 0.188 INCHES NOMINAL IN, outside_diameter: 1.562 INCHES NOMINAL IN, style_designator: SPRING TENSION, material_thickness: 0.016 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 5310-00-316-5303, 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
8517ITEM48
NSN: 5310-00-316-5303
FSC: 5310
CAGE: 33409 — A. O. SMITH CORPORATION DBA A O SMITH CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.938 INCHES NOMINAL IN
overall_height0.188 INCHES NOMINAL IN
outside_diameter1.562 INCHES NOMINAL IN
style_designatorSPRING TENSION
material_thickness0.016 INCHES NOMINAL IN
NSN5310-00-316-5303
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8517ITEM48 · 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: STEEL OVERALL
•
HOLE DIAMETER: 0.938 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPRING TENSION
•
OUTSIDE DIAMETER: 1.562 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.016 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
HOLE DIAMETER0.938 INCHES NOMINAL IN
STYLE DESIGNATORSPRING TENSION
OVERALL HEIGHT0.188 INCHES NOMINAL IN
OUTSIDE DIAMETER1.562 INCHES NOMINAL IN
MATERIAL THICKNESS0.016 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
70242Interchangeable
interchangeable cross-reference
interchangeable
52589-1Interchangeable
interchangeable cross-reference
interchangeable
A1800Interchangeable
interchangeable cross-reference
interchangeable
A15A125Interchangeable
interchangeable cross-reference
interchangeable
15A125P1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8517ITEM48?
8517ITEM48 is a WASHER,SPRING TENSION.
What parts can replace 8517ITEM48?
There are 7 known substitutes for 8517ITEM48: 70242, 52589-1, A1800 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8517ITEM48?
8517ITEM48 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-316-5303. 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