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PartsTable / COMPONENT / 20D43
20D43 ✓ 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: COPPER ALLOY OVERALL, first_end_style: CHAMFERED, pin_overall_length: 0.440 INCHES NOMINAL IN, pin_overall_diameter: 0.1850 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM IN, first_end_taper_angle: 45.0 DEGREES MAXIMUM, first_end_taper_length: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-350-4074, 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
20D43
NSN: 5315-00-350-4074
FSC: 5315
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
first_end_styleCHAMFERED
pin_overall_length0.440 INCHES NOMINAL IN
pin_overall_diameter0.1850 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM IN
first_end_taper_angle45.0 DEGREES MAXIMUM
first_end_taper_length0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
material_document_and_classificationALLOY 617 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-350-4074
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20D43 · 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
•
FIRST END TAPER LENGTH: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
•
FIRST END TAPER ANGLE: 45.0 DEGREES MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: ALLOY 617 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST END STYLE: CHAMFERED
•
PIN OVERALL DIAMETER: 0.1850 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
PIN OVERALL LENGTH: 0.440 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END TAPER LENGTH0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
FIRST END TAPER ANGLE45.0 DEGREES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONALLOY 617 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST END STYLECHAMFERED
PIN OVERALL DIAMETER0.1850 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PIN OVERALL LENGTH0.440 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
200140Interchangeable
interchangeable cross-reference
interchangeable
K5557Interchangeable
interchangeable cross-reference
interchangeable
5557Interchangeable
interchangeable cross-reference
interchangeable
130.05.003.0Interchangeable
interchangeable cross-reference
interchangeable
26-067Interchangeable
interchangeable cross-reference
interchangeable
4023Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20D43?
20D43 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 20D43?
There are 9 known substitutes for 20D43: 200140, K5557, 5557 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20D43?
20D43 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-350-4074. 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: July 2026