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PartsTable / COMPONENT / 7743652
7743652 ✓ 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,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1212 OR STEEL COMP 1213 OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.562 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN, hardness_rating: 58.0 ROCKWELL C NOMINAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-159-6278, 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
7743652
NSN: 5310-00-159-6278
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1212 OR STEEL COMP 1213 OVERALL
nut_styleCASTELLATED, HEXAGON
nut_height0.562 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
hardness_rating58.0 ROCKWELL C NOMINAL
thread_directionRIGHT-HAND
features_providedCASEHARDENED
width_across_flats1.312 INCHES NOMINAL IN
nominal_thread_size0.875 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch16
NSN5310-00-159-6278
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7743652 · 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
•
HARDNESS RATING: 58.0 ROCKWELL C NOMINAL
•
WIDTH ACROSS FLATS: 1.312 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.875 INCHES IN
•
THREAD QUANTITY PER INCH: 16
•
THREAD SERIES: UN
•
THREAD DIRECTION: RIGHT-HAND
•
NUT HEIGHT: 0.562 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING58.0 ROCKWELL C NOMINAL
WIDTH ACROSS FLATS1.312 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.875 INCHES IN
THREAD QUANTITY PER INCH16
THREAD SERIESUN
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.562 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1212 OR STEEL COMP 1213 OVERALL
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
GGG-W-644Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-644 TY1SZ10Interchangeable
interchangeable cross-reference
interchangeable
FRS T95Interchangeable
interchangeable cross-reference
interchangeable
136BLACKInterchangeable
interchangeable cross-reference
interchangeable
ZCC10189Interchangeable
interchangeable cross-reference
interchangeable
221Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7743652?
7743652 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What parts can replace 7743652?
There are 14 known substitutes for 7743652: GGG-W-644, GGG-W-644 TY1SZ10, FRS T95 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7743652?
7743652 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-159-6278. 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