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NASM21143 ✓ 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 PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, shear_strength: 7200 DOUBLE POUND, surface_finish: 16.0 MICROINCHES OUTSIDE DIAMETER, first_end_style: SQUARE, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL, second_end_style: RADIUS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-685-0458, 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
NASM21143
NSN: 5315-00-685-0458
FSC: 5315
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
shear_strength7200 DOUBLE POUND
surface_finish16.0 MICROINCHES OUTSIDE DIAMETER
first_end_styleSQUARE
hardness_rating36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
second_end_styleRADIUS
special_featuresSMALL CHAMFER END MAY BE 0.039 IN. MIN 0.104 IN. MAX RADIUS IN LIEU OF CHAMFER IN
features_providedCASEHARDENED
surface_treatmentPASSIVATE OVERALL
pin_overall_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
pin_overall_diameter0.0936 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN
first_end_taper_angle20.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
NSN5315-00-685-0458
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NASM21143 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
67-101Interchangeable
interchangeable cross-reference
interchangeable
D14-12Interchangeable
interchangeable cross-reference
interchangeable
C53652Interchangeable
interchangeable cross-reference
interchangeable
EX2AInterchangeable
interchangeable cross-reference
interchangeable
20202Interchangeable
interchangeable cross-reference
interchangeable
153-1217Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NASM21143?
NASM21143 is a PIN,STRAIGHT,HEADLESS.
What parts can replace NASM21143?
There are 26 known substitutes for NASM21143: 67-101, D14-12, C53652 and 23 more. Substitute compatibility should be verified for your specific system.
Is NASM21143 still available?
NASM21143 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