PartsTable
Technical Data Sheet
M21143/1-35 ✓ 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 M21143/1-35 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-286-0016, 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
M21143/1-35
NSN: 5315-01-286-0016
FSC: 5315
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM21143/1-35
NSN5315-01-286-0016
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M21143/1-35 · 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
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
MATERIAL: STEEL COMP 303 OVERALL
SURFACE TREATMENT: PASSIVATE OVERALL
PIN OVERALL LENGTH: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TY2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PIN OVERALL DIAMETER: 0.1875 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST END STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL COMP 303 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
PIN OVERALL LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TY2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PIN OVERALL DIAMETER0.1875 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST END STYLESQUARE
SHEAR STRENGTH1800 DOUBLE POUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
103696Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-21143Interchangeable
interchangeable cross-reference
interchangeable
141119Interchangeable
interchangeable cross-reference
interchangeable
8P15-200-253Interchangeable
interchangeable cross-reference
interchangeable
3C3159P03Interchangeable
interchangeable cross-reference
interchangeable
950111-61Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M21143/1-35?
M21143/1-35 is a M21143/1-35.
What parts can replace M21143/1-35?
There are 19 known substitutes for M21143/1-35: 103696, MIL-P-21143, 141119 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M21143/1-35?
M21143/1-35 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-286-0016. This indicates validated use in U.S. government and defense supply chains.
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