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MS20065-105 — Technical Data Sheet

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— · 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: 0.563 INCHES NOMINAL IN, overall_height: 0.375 INCHES NOMINAL IN, overall_length: 1.490 INCHES MINIMUM AND 1.510 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 product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-549-6721, 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
MS20065-105
NSN: 5315-00-549-6721
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_width0.563 INCHES NOMINAL IN
overall_height0.375 INCHES NOMINAL IN
overall_length1.490 INCHES MINIMUM AND 1.510 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_shapeSTRAIGHT
nondefinitive_spec/std_data2 TYPE AND 1 STYLE AND B GRADE
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5315-00-549-6721
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS20065-105 · 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
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL: STEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 OVERALL
•
SHEAR STRENGTH: 90000 SINGLE POUNDS PER SQUARE INCH
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 1 STYLE AND B GRADE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.563 INCHES NOMINAL IN
OVERALL HEIGHT0.375 INCHES NOMINAL IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORPLAIN
OVERALL LENGTH1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 OVERALL
SHEAR STRENGTH90000 SINGLE POUNDS PER SQUARE INCH
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 STYLE AND B GRADE
STARTING EDGE SHAPESTRAIGHT
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
DZ1100-69Same_fsc
same_fsc cross-reference
same_fsc
330821-3Same_fsc
same_fsc cross-reference
same_fsc
00K220Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS20065-105?
MS20065-105 is a KEY,MACHINE.
What parts can replace MS20065-105?
There are 3 known substitutes for MS20065-105: DZ1100-69, 330821-3, 00K220. Substitute compatibility should be verified for your specific system.
What is the NSN for MS20065-105?
MS20065-105 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-549-6721. 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: September 2026