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PartsTable / COMPONENT / S1426-2
S1426-2 ✓ 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,HEADED is a the manufacturer industrial component. Key specifications include diameter: 0.089 INCHES NOMINAL IN, material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL, chamfer_length: 0.250 INCHES NOMINAL IN, style_designator: STRAIGHT, pin_chamfer_angle: 10.0 DEGREES NOMINAL, surface_treatment: CADMIUM 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 5315-00-401-4571, 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
S1426-2
NSN: 5315-00-401-4571
FSC: 5315
CAGE: 7EK50 — TEXTRON AVIATION INC (USA)
SPECIFICATIONS
diameter0.089 INCHES NOMINAL IN
materialSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
chamfer_length0.250 INCHES NOMINAL IN
style_designatorSTRAIGHT
pin_chamfer_angle10.0 DEGREES NOMINAL
surface_treatmentCADMIUM OVERALL
under_head_length1.951 INCHES NOMINAL IN
material_document_and_classificationQQ-W-423 FED SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-401-4571
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S1426-2 · 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
•
CHAMFER LENGTH: 0.250 INCHES NOMINAL IN
•
DIAMETER: 0.089 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-423 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
•
PIN CHAMFER ANGLE: 10.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: STRAIGHT
•
UNDER HEAD LENGTH: 1.951 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CHAMFER LENGTH0.250 INCHES NOMINAL IN
DIAMETER0.089 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-423 FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
PIN CHAMFER ANGLE10.0 DEGREES NOMINAL
STYLE DESIGNATORSTRAIGHT
UNDER HEAD LENGTH1.951 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
302501Interchangeable
interchangeable cross-reference
interchangeable
S1426-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1426-2?
S1426-2 is a PIN,STRAIGHT,HEADED.
What parts can replace S1426-2?
There are 2 known substitutes for S1426-2: 302501, S1426-2. Substitute compatibility should be verified for your specific system.
What is the NSN for S1426-2?
S1426-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-401-4571. 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