PartsTable
Technical Data Sheet
EC12339403 ✓ 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 TUBE,BENT,METALLIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1110 OVERALL, nut_style: CONE SEAT, HEXAGON, nut_height: 0.760 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, cone_seat_angle: 59.00 DEGREES NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-021-9027, 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
EC12339403
NSN: 5310-01-021-9027
FSC: 5310
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 1110 OVERALL
nut_styleCONE SEAT, HEXAGON
nut_height0.760 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
cone_seat_angle59.00 DEGREES NOMINAL
thread_directionRIGHT-HAND
countersink_angle45.0 DEGREES NOMINAL NUT
features_providedCASEHARDENED
surface_treatmentZINC OVERALL
width_across_flats0.861 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
nominal_thread_size0.562 INCHES IN
NSN5310-01-021-9027
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: EC12339403 · 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
WIDTH ACROSS FLATS: 0.861 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
NOMINAL THREAD SIZE: 0.562 INCHES IN
CONE SEAT ANGLE: 59.00 DEGREES NOMINAL
FEATURES PROVIDED: CASEHARDENED
THREAD QUANTITY PER INCH: 18
THREAD SERIES: UNF
MATERIAL: STEEL COMP 1110 OVERALL
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.861 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.562 INCHES IN
CONE SEAT ANGLE59.00 DEGREES NOMINAL
FEATURES PROVIDEDCASEHARDENED
THREAD QUANTITY PER INCH18
THREAD SERIESUNF
MATERIALSTEEL COMP 1110 OVERALL
SURFACE TREATMENTZINC OVERALL
COUNTERSINK ANGLE45.0 DEGREES NOMINAL NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONGM 4342-M CODE 20,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
7112Interchangeable
interchangeable cross-reference
interchangeable
81107Interchangeable
interchangeable cross-reference
interchangeable
XLCW24MInterchangeable
interchangeable cross-reference
interchangeable
7072Interchangeable
interchangeable cross-reference
interchangeable
E-75GInterchangeable
interchangeable cross-reference
interchangeable
AA50563-101AEEEBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is EC12339403?
EC12339403 is a TUBE,BENT,METALLIC.
What parts can replace EC12339403?
There are 24 known substitutes for EC12339403: 7112, 81107, XLCW24M and 21 more. Substitute compatibility should be verified for your specific system.
Is EC12339403 still available?
EC12339403 is currently cancelled.
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