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PartsTable / COMPONENT / 266096
266096 ✓ 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: STEEL COMP 1020 OR STEEL COMP 1025 OVERALL, hole_diameter: 1.315 INCHES MINIMUM AND 1.325 INCHES MAXIMUM IN, outside_diameter: 1.580 INCHES NOMINAL IN, special_features: MATERIAL IS ANNEALED, style_designator: KEY, material_thickness: 2.100 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 5310-00-685-1744, 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
266096
NSN: 5310-00-685-1744
FSC: 5310
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OR STEEL COMP 1025 OVERALL
hole_diameter1.315 INCHES MINIMUM AND 1.325 INCHES MAXIMUM IN
outside_diameter1.580 INCHES NOMINAL IN
special_featuresMATERIAL IS ANNEALED
style_designatorKEY
material_thickness2.100 INCHES NOMINAL IN
external_key_quantity13
internal_key_quantity1
external_prebent_key_angle30.0 DEGREES NOMINAL
external_prebent_key_width0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
internal_straight_key_width0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
overall_distance_including_keys2.000 INCHES NOMINAL IN
NSN5310-00-685-1744
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 266096 · 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 8
50-50T12Interchangeable
interchangeable cross-reference
interchangeable
50-50T12-115VInterchangeable
interchangeable cross-reference
interchangeable
6240PL1338029Interchangeable
interchangeable cross-reference
interchangeable
375089Interchangeable
interchangeable cross-reference
interchangeable
R399P2Interchangeable
interchangeable cross-reference
interchangeable
SL4905-428Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 266096?
266096 is a WASHER,KEY.
What parts can replace 266096?
There are 8 known substitutes for 266096: 50-50T12, 50-50T12-115V, 6240PL1338029 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 266096?
266096 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-685-1744. 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