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34673S ✓ 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.375 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, 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 5310-00-012-2210, 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
34673S
NSN: 5310-00-012-2210
FSC: 5310
CAGE: 23040 — FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.375 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.438 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch20
NSN5310-00-012-2210
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 34673S · 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
•
THREAD CLASS: 3B
•
WIDTH ACROSS FLATS: 0.625 INCHES NOMINAL IN
•
NUT HEIGHT: 0.375 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
THREAD QUANTITY PER INCH: 20
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
NUT HEIGHT0.375 INCHES NOMINAL IN
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.438 INCHES IN
THREAD QUANTITY PER INCH20
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
343D408G01Interchangeable
interchangeable cross-reference
interchangeable
122010Interchangeable
interchangeable cross-reference
interchangeable
SE 8AInterchangeable
interchangeable cross-reference
interchangeable
100020Interchangeable
interchangeable cross-reference
interchangeable
33816SInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 34673S?
34673S is a NUT,PLAIN,HEXAGON.
What parts can replace 34673S?
There are 5 known substitutes for 34673S: 343D408G01, 122010, SE 8A and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 34673S?
34673S is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-2210. 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