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PartsTable / COMPONENT / 90-104A3-1
90-104A3-1 ✓ 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: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 BASE, nut_length: 0.745 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, plate_width: 0.489 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-700-1319, 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
90-104A3-1
NSN: 5310-01-700-1319
FSC: 5310
CAGE: 97499 — BELL TEXTRON INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 BASE
nut_length0.745 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
plate_width0.489 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.250 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresAXIAL TENSILE STRENGTH:2460 POUNDS;PUSH OUT:100 MINIMUM POUNDS;TORQUES OUT:60 MINIMUM INCH-POUNDS;ITEM KNOWN AS:NUT PLATE; LBS
thread_directionRIGHT-HAND
surface_treatmentANODIZE BASE
nominal_thread_size0.1900 INCHES IN
NSN5310-01-700-1319
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90-104A3-1 · 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 DOCUMENT AND CLASSIFICATION: AMS-QQ-A-250 ASSN STD SINGLE MATERIAL RESPONSE BASE
•
PLATE WIDTH: 0.489 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING NUT
•
SURFACE TREATMENT: PASSIVATE NUT
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
COUNTERBORE DIAMETER: 0.250 INCHES NOMINAL OVERALL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-QQ-A-250 ASSN STD SINGLE MATERIAL RESPONSE BASE
PLATE WIDTH0.489 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING NUT
SURFACE TREATMENTPASSIVATE NUT
SURFACE TREATMENTANODIZE BASE
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
MATERIALALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 BASE
COUNTERBORE DIAMETER0.250 INCHES NOMINAL OVERALL IN
THREAD QUANTITY PER INCH32
LUBRICATIONDRY FILM LUBRICANT
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 90-104A3-1?
90-104A3-1 is a NUT,SELF-LOCKING,PLATE.
What parts can replace 90-104A3-1?
There are 12 known substitutes for 90-104A3-1: 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 90-104A3-1?
90-104A3-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-700-1319. 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