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PartsTable / COMPONENT / 1227B496
1227B496 ✓ 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,SLOTTED,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: SLOTTED, HEXAGON, nut_height: 0.625 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNEF, thread_direction: RIGHT-HAND, countersink_angle: 90.0 DEGREES NOMINAL NUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-485-0058, 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
1227B496
NSN: 5310-00-485-0058
FSC: 5310
CAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 1211 OR STEEL COMP 4032 OR STEEL COMP 1213 OR STEEL COMP 1109 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1120 OVERALL
nut_styleSLOTTED, HEXAGON
nut_height0.625 INCHES NOMINAL IN
thread_class3B
thread_seriesUNEF
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL NUT
width_across_flats2.125 INCHES NOMINAL IN
nominal_thread_size1.250 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch18
material_document_and_classificationAISI ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-637 FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-637 FED SPEC 6TH MATERIAL RESPONSE OVERALL
NSN5310-00-485-0058
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1227B496 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
16278Interchangeable
interchangeable cross-reference
interchangeable
5143813Interchangeable
interchangeable cross-reference
interchangeable
1227B496Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1227B496?
1227B496 is a NUT,PLAIN,SLOTTED,HEXAGON.
What parts can replace 1227B496?
There are 3 known substitutes for 1227B496: 16278, 5143813, 1227B496. Substitute compatibility should be verified for your specific system.
What is the NSN for 1227B496?
1227B496 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-485-0058. 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