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PartsTable / COMPONENT / 0601C0066-6
0601C0066-6 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 316 OR STEEL COMP 321 OVERALL, thickness: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN, hole_diameter: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, overall_diameter: 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-015-0013, 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
0601C0066-6
NSN: 5310-00-015-0013
FSC: 5310
CAGE: 54497 — MARTIN MARIETTA TECHNOLOGIES INC SUB OF MARTIN MARIETTA CORP AERO AND NAVAL SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 316 OR STEEL COMP 321 OVERALL
thickness0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
hole_diameter0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
overall_diameter0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-015-0013
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0601C0066-6 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 316 OR STEEL COMP 321 OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
THICKNESS: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 316 OR STEEL COMP 321 OVERALL
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
THICKNESS0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
OVERALL DIAMETER0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
237Interchangeable
interchangeable cross-reference
interchangeable
T0805Interchangeable
interchangeable cross-reference
interchangeable
2142Interchangeable
interchangeable cross-reference
interchangeable
20 3-4Interchangeable
interchangeable cross-reference
interchangeable
901-3/4IN.Interchangeable
interchangeable cross-reference
interchangeable
B-316SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0601C0066-6?
0601C0066-6 is a WASHER,FLAT.
What parts can replace 0601C0066-6?
There are 18 known substitutes for 0601C0066-6: 237, T0805, 2142 and 15 more. Substitute compatibility should be verified for your specific system.
Is 0601C0066-6 still available?
0601C0066-6 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