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Technical Data Sheet
PartsTable / COMPONENT / C19012
C19012 ✓ 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 TEST SET,TRANSMISSION LINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL, thickness: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, key_height: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, body_length: 2.625 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT ALL WINDING, inclosure_type: FULLY INCLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-616-5520, 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
C19012
NSN: 5315-00-616-5520
FSC: 5315
CAGE: 11976 — CHICAGO PNEUMATIC TOOL CO (USA)
SPECIFICATIONS
materialSTEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
thickness0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
key_height0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
body_length2.625 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT ALL WINDING
inclosure_typeFULLY INCLOSED
circle_diameter0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
mounting_methodTERMINAL SINGLE GROUP
style_designatorROUND BOTTOM
winding_quantity2 SINGLE COMPONENT
inductance_rating44.00 MICROHENRIES NOMINAL SINGLE COMPONENT FIRST WINDING
NSN5315-00-616-5520
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C19012 · 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 HEIGHT: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF 11
•
MATERIAL: STEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
•
CIRCLE DIAMETER: 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
STARTING EDGE SHAPE: STRAIGHT
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
THICKNESS: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND BOTTOM
TECHNICAL CHARACTERISTICS (FLIS)
KEY HEIGHT0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF 11
MATERIALSTEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
CIRCLE DIAMETER0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
STARTING EDGE SHAPESTRAIGHT
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
THICKNESS0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
STYLE DESIGNATORROUND BOTTOM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
MS15607-3Interchangeable
interchangeable cross-reference
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WL50Interchangeable
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4528Interchangeable
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72-6970-341Interchangeable
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20504-29Interchangeable
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895DUInterchangeable
interchangeable cross-reference
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LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C19012?
C19012 is a TEST SET,TRANSMISSION LINE.
What parts can replace C19012?
There are 23 known substitutes for C19012: MS15607-3, WL50, 4528 and 20 more. Substitute compatibility should be verified for your specific system.
Is C19012 still available?
C19012 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