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PartsTable / COMPONENT / MS20068-99
MS20068-99 ✓ 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 COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 OVERALL, overall_width: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, overall_height: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, overall_length: 1.115 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN, shear_strength: 90000 SINGLE POUNDS PER SQUARE INCH, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-781-1993, 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
MS20068-99
NSN: 5315-00-781-1993
FSC: 5315
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 OVERALL
overall_width0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
overall_height0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
overall_length1.115 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
shear_strength90000 SINGLE POUNDS PER SQUARE INCH
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
style_designatorPLAIN
starting_edge_shapeROUND
starting_edge_radius0.094 INCHES NOMINAL IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5315-00-781-1993
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS20068-99 · 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
•
STARTING EDGE SHAPE: ROUND
•
SHEAR STRENGTH: 90000 SINGLE POUNDS PER SQUARE INCH
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: STEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 OVERALL
•
STARTING EDGE RADIUS: 0.094 INCHES NOMINAL IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STARTING EDGE SHAPEROUND
SHEAR STRENGTH90000 SINGLE POUNDS PER SQUARE INCH
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 OVERALL
STARTING EDGE RADIUS0.094 INCHES NOMINAL IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
OVERALL WIDTH0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
OVERALL LENGTH1.115 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN
OVERALL HEIGHT0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
200J6Interchangeable
interchangeable cross-reference
interchangeable
327476Interchangeable
interchangeable cross-reference
interchangeable
1302Interchangeable
interchangeable cross-reference
interchangeable
10026Interchangeable
interchangeable cross-reference
interchangeable
C12167Interchangeable
interchangeable cross-reference
interchangeable
20026Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS20068-99?
MS20068-99 is a KEY,MACHINE.
What parts can replace MS20068-99?
There are 10 known substitutes for MS20068-99: 200J6, 327476, 1302 and 7 more. Substitute compatibility should be verified for your specific system.
Is MS20068-99 still available?
MS20068-99 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