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Technical Data Sheet
PartsTable / COMPONENT / SC-C-61466
SC-C-61466 ✓ 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,CONCAVE is a the manufacturer industrial component. Key specifications include color: BLACK OVERALL, radius: 0.188 INCHES NOMINAL IN, material: STEEL COMP 630 OVERALL, hole_diameter: 0.201 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM, outside_diameter: 0.312 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 5310-00-791-1638, 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
SC-C-61466
NSN: 5310-00-791-1638
FSC: 5310
CAGE: 56582 — MN INDUSTRIES CO
SPECIFICATIONS
colorBLACK OVERALL
radius0.188 INCHES NOMINAL IN
materialSTEEL COMP 630 OVERALL
hole_diameter0.201 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
outside_diameter0.312 INCHES NOMINAL IN
style_designatorCONCAVE
surface_treatmentOXIDE OVERALL
material_thickness0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
NSN5310-00-791-1638
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SC-C-61466 · 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
•
STYLE DESIGNATOR: CONCAVE
•
COLOR: BLACK OVERALL
•
SURFACE TREATMENT: OXIDE OVERALL
•
MATERIAL: STEEL COMP 630 OVERALL
•
OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.201 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
•
MATERIAL THICKNESS: 0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCONCAVE
COLORBLACK OVERALL
SURFACE TREATMENTOXIDE OVERALL
MATERIALSTEEL COMP 630 OVERALL
OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
HOLE DIAMETER0.201 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
MATERIAL THICKNESS0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
RADIUS0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
66331Interchangeable
interchangeable cross-reference
interchangeable
6031T28P01Interchangeable
interchangeable cross-reference
interchangeable
710341Interchangeable
interchangeable cross-reference
interchangeable
8003Interchangeable
interchangeable cross-reference
interchangeable
4059Interchangeable
interchangeable cross-reference
interchangeable
6145PL0836384Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC-C-61466?
SC-C-61466 is a WASHER,CONCAVE.
What parts can replace SC-C-61466?
There are 6 known substitutes for SC-C-61466: 66331, 6031T28P01, 710341 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC-C-61466?
SC-C-61466 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-791-1638. 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