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PartsTable / COMPONENT / SL4143 PC6
SL4143 PC6 ✓ 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 WASHER,KEY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY UNS N10001 OVERALL, hole_diameter: 0.750 INCHES NOMINAL IN, outside_diameter: 1.093 INCHES NOMINAL IN, special_features: 40 DEGREE ANGLE BETWEEN SIXTH AND SEVENTH KEY, material_thickness: 0.031 INCHES NOMINAL IN, external_prebent_key_width: 0.158 INCHES NOMINAL 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 5310-00-637-3079, 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
SL4143 PC6
NSN: 5310-00-637-3079
FSC: 5310
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialNICKEL ALLOY UNS N10001 OVERALL
hole_diameter0.750 INCHES NOMINAL IN
outside_diameter1.093 INCHES NOMINAL IN
special_features40 DEGREE ANGLE BETWEEN SIXTH AND SEVENTH KEY
material_thickness0.031 INCHES NOMINAL IN
external_key_quantity7
external_prebent_key_width0.158 INCHES NOMINAL IN
internal_prebent_key_width0.174 INCHES NOMINAL IN
internal_prebent_key_length0.235 INCHES NOMINAL IN
overall_distance_including_keys1.224 INCHES NOMINAL IN
angle_between_fifth_and_sixth_key40.0 DEGREES NOMINAL
angle_between_first_and_second_key40.0 DEGREES NOMINAL
NSN5310-00-637-3079
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SL4143 PC6 · 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
•
ANGLE BETWEEN SECOND AND THIRD KEY: 40.0 DEGREES NOMINAL
•
ANGLE BETWEEN FIFTH AND SIXTH KEY: 40.0 DEGREES NOMINAL
•
ANGLE BETWEEN THIRD AND FOURTH KEY: 40.0 DEGREES NOMINAL
•
EXTERNAL PREBENT KEY WIDTH: 0.158 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY LENGTH: 0.235 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.750 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 7
TECHNICAL CHARACTERISTICS (FLIS)
ANGLE BETWEEN SECOND AND THIRD KEY40.0 DEGREES NOMINAL
ANGLE BETWEEN FIFTH AND SIXTH KEY40.0 DEGREES NOMINAL
ANGLE BETWEEN THIRD AND FOURTH KEY40.0 DEGREES NOMINAL
EXTERNAL PREBENT KEY WIDTH0.158 INCHES NOMINAL IN
INTERNAL PREBENT KEY LENGTH0.235 INCHES NOMINAL IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
HOLE DIAMETER0.750 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY7
SPECIAL FEATURES40 DEGREE ANGLE BETWEEN SIXTH AND SEVENTH KEY
OUTSIDE DIAMETER1.093 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
17820Interchangeable
interchangeable cross-reference
interchangeable
29674Interchangeable
interchangeable cross-reference
interchangeable
17520Interchangeable
interchangeable cross-reference
interchangeable
1340Interchangeable
interchangeable cross-reference
interchangeable
44101Interchangeable
interchangeable cross-reference
interchangeable
12231Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SL4143 PC6?
SL4143 PC6 is a WASHER,KEY.
What parts can replace SL4143 PC6?
There are 20 known substitutes for SL4143 PC6: 17820, 29674, 17520 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SL4143 PC6?
SL4143 PC6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-637-3079. 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