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PartsTable / COMPONENT / 90-104A3-2
90-104A3-2 ✓ 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 NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING NUT, nut_length: 0.745 INCHES MAXIMUM IN, plate_width: 0.312 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-700-8530, 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
90-104A3-2
NSN: 5310-01-700-8530
FSC: 5310
CAGE: 66530 — CLICK BOND INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING NUT
nut_length0.745 INCHES MAXIMUM IN
plate_width0.312 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentANODIZE BASE
nominal_thread_size0.1900 INCHES IN
counterbore_diameter0.250 INCHES NOMINAL OVERALL IN
thread_quantity_per_inch32
material_document_and_classificationAMS-QQ-A-250 ASSN STD SINGLE MATERIAL RESPONSE BASE
NSN5310-01-700-8530
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90-104A3-2 · 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
•
MATERIAL: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 BASE
•
COUNTERBORE DIAMETER: 0.250 INCHES NOMINAL OVERALL IN
•
NUT LENGTH: 0.745 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
SURFACE TREATMENT: ANODIZE BASE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS-QQ-A-250 ASSN STD SINGLE MATERIAL RESPONSE BASE
•
PLATE WIDTH: 0.312 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT,SELF-LOCKING
MATERIALALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 BASE
COUNTERBORE DIAMETER0.250 INCHES NOMINAL OVERALL IN
NUT LENGTH0.745 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
SURFACE TREATMENTANODIZE BASE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-QQ-A-250 ASSN STD SINGLE MATERIAL RESPONSE BASE
PLATE WIDTH0.312 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
THREAD CLASS3B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
90104Interchangeable
interchangeable cross-reference
interchangeable
L-4-18-9-MInterchangeable
interchangeable cross-reference
interchangeable
433-1792Interchangeable
interchangeable cross-reference
interchangeable
418212-40Interchangeable
interchangeable cross-reference
interchangeable
90455-1Interchangeable
interchangeable cross-reference
interchangeable
352250020274Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 90-104A3-2?
90-104A3-2 is a NUT,SELF-LOCKING,PLATE.
What parts can replace 90-104A3-2?
There are 12 known substitutes for 90-104A3-2: 90104, L-4-18-9-M, 433-1792 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90-104A3-2?
90-104A3-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-700-8530. 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