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PartsTable / COMPONENT / 90949A124
90949A124 ✓ 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,PLAIN,PLATE is a the manufacturer industrial component. Key specifications include nut_style: PLATE, nut_height: 0.796875 INCHES NOMINAL IN, plate_width: 1.750 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), plate_thickness: 0.120 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 5310-01-670-7694, 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
90949A124
NSN: 5310-01-670-7694
FSC: 5310
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
nut_stylePLATE
nut_height0.796875 INCHES NOMINAL IN
plate_width1.750 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
plate_thickness0.120 INCHES NOMINAL IN
special_featuresHEXAGON HEAD 1.3125IN ACROSS FLATS IN
thread_directionRIGHT-HAND
nominal_thread_size0.875 INCHES IN
end_item_identification015604409
thread_quantity_per_inch9
NSN5310-01-670-7694
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90949A124 · 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
•
PLATE WIDTH: 1.750 INCHES NOMINAL IN
•
NUT STYLE: PLATE
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 9
•
THREAD CLASS: 2B
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
PLATE WIDTH1.750 INCHES NOMINAL IN
NUT STYLEPLATE
END ITEM IDENTIFICATION015604409
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH9
THREAD CLASS2B
SPECIAL FEATURESHEXAGON HEAD 1.3125IN ACROSS FLATS IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.875 INCHES IN
NUT HEIGHT0.796875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
021-14620-000Interchangeable
interchangeable cross-reference
interchangeable
250-795D1E1033P YInterchangeable
interchangeable cross-reference
interchangeable
00638Interchangeable
interchangeable cross-reference
interchangeable
8141-00Interchangeable
interchangeable cross-reference
interchangeable
TM FIG. 7-24 INDEX NO 6Interchangeable
interchangeable cross-reference
interchangeable
LOCTITE 638 10MLInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 90949A124?
90949A124 is a NUT,PLAIN,PLATE.
What parts can replace 90949A124?
There are 7 known substitutes for 90949A124: 021-14620-000, 250-795D1E1033P Y, 00638 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90949A124?
90949A124 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-670-7694. 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