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Technical Data Sheet
PartsTable / COMPONENT / 8517ITEM6
8517ITEM6 ✓ 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 KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flat_height: 0.122 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, overall_width: 0.247 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, overall_height: 0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN, overall_length: 0.578 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN, first_flat_length: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-281-7989, 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
8517ITEM6
NSN: 5315-00-281-7989
FSC: 5315
CAGE: 83590 — SMITH METER INC PARTS OPN (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flat_height0.122 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
overall_width0.247 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
overall_height0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
overall_length0.578 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
first_flat_length0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
key_chamfer_angle45.0 DEGREES NOMINAL
key_chamfer_length0.031 INCHES NOMINAL IN
second_flat_length0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
starting_edge_shapeCHAMFERED
NSN5315-00-281-7989
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8517ITEM6 · 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
•
KEY CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
FLAT HEIGHT: 0.122 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
STARTING EDGE SHAPE: CHAMFERED
•
FIRST FLAT LENGTH: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
•
KEY CHAMFER LENGTH: 0.031 INCHES NOMINAL IN
•
SECOND FLAT LENGTH: 0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
KEY CHAMFER ANGLE45.0 DEGREES NOMINAL
FLAT HEIGHT0.122 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
OVERALL WIDTH0.247 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
OVERALL LENGTH0.578 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
STARTING EDGE SHAPECHAMFERED
FIRST FLAT LENGTH0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
KEY CHAMFER LENGTH0.031 INCHES NOMINAL IN
SECOND FLAT LENGTH0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
OVERALL HEIGHT0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
5310008737094Interchangeable
interchangeable cross-reference
interchangeable
23728-1-42Interchangeable
interchangeable cross-reference
interchangeable
23756Interchangeable
interchangeable cross-reference
interchangeable
237.56Interchangeable
interchangeable cross-reference
interchangeable
98-2182Interchangeable
interchangeable cross-reference
interchangeable
8519ITEM6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8517ITEM6?
8517ITEM6 is a KEY,MACHINE.
What parts can replace 8517ITEM6?
There are 6 known substitutes for 8517ITEM6: 5310008737094, 23728-1-42, 23756 and 3 more. Substitute compatibility should be verified for your specific system.
Is 8517ITEM6 still available?
8517ITEM6 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