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1A60423 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 1.142 INCHES NOMINAL IN, outside_diameter: 1.827 INCHES NOMINAL IN, style_designator: FLAT EXTERNAL TEETH, material_thickness: 0.040 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-261-7367, 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
1A60423
NSN: 5310-00-261-7367
FSC: 5310
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.142 INCHES NOMINAL IN
outside_diameter1.827 INCHES NOMINAL IN
style_designatorFLAT EXTERNAL TEETH
material_thickness0.040 INCHES NOMINAL IN
NSN5310-00-261-7367
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1A60423 · 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
•
STYLE DESIGNATOR: FLAT EXTERNAL TEETH
•
HOLE DIAMETER: 1.142 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
MATERIAL THICKNESS: 0.040 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.827 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORFLAT EXTERNAL TEETH
HOLE DIAMETER1.142 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
OUTSIDE DIAMETER1.827 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
655116Interchangeable
interchangeable cross-reference
interchangeable
1340Interchangeable
interchangeable cross-reference
interchangeable
44123Interchangeable
interchangeable cross-reference
interchangeable
505-6848-002Interchangeable
interchangeable cross-reference
interchangeable
1138-1Interchangeable
interchangeable cross-reference
interchangeable
350700193Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1A60423?
1A60423 is a WASHER,LOCK.
What parts can replace 1A60423?
There are 14 known substitutes for 1A60423: 655116, 1340, 44123 and 11 more. Substitute compatibility should be verified for your specific system.
Is 1A60423 still available?
1A60423 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