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PartsTable / COMPONENT / 5248U
5248U ✓ 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

NUT,PLAIN,SINGLE BALL SEAT,HEXAG. Key specifications include material: STEEL OVERALL, nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.715 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-150-1589, 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
5248U
NSN: 5310-00-150-1589
FSC: 5310
CAGE: 72981 — ERIE MALLEABLE IRON CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSINGLE BALL SEAT, HEXAGON
nut_height0.715 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats1.250 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
thread_quantity_per_inch10
NSN5310-00-150-1589
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5248U · 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: STEEL OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2B
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
WIDTH ACROSS FLATS: 1.250 INCHES NOMINAL IN
•
NUT HEIGHT: 0.715 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 10
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
NOMINAL THREAD SIZE0.750 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS1.250 INCHES NOMINAL IN
NUT HEIGHT0.715 INCHES NOMINAL IN
THREAD QUANTITY PER INCH10
NUT STYLESINGLE BALL SEAT, HEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
10098AInterchangeable
interchangeable cross-reference
interchangeable
372-0223Interchangeable
interchangeable cross-reference
interchangeable
131-10270Interchangeable
interchangeable cross-reference
interchangeable
11507676Interchangeable
interchangeable cross-reference
interchangeable
CS10116Interchangeable
interchangeable cross-reference
interchangeable
1801101-05248Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5248U?
5248U is a NUT,PLAIN,SINGLE BALL SEAT,HEXAG.
What parts can replace 5248U?
There are 16 known substitutes for 5248U: 10098A, 372-0223, 131-10270 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5248U?
5248U is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-150-1589. 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