PartsTable
Technical Data Sheet
AN365-420C ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-207-9071, 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
AN365-420C
NSN: 5310-00-207-9071
FSC: 5310
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
NSN5310-00-207-9071
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN365-420C · 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: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE: 0.250 INCHES IN
MATERIAL: STEEL OVERALL
NUT STYLE: HEXAGON
NUT HEIGHT: 0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.250 INCHES IN
MATERIALSTEEL OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
203-1011P63Interchangeable
interchangeable cross-reference
interchangeable
441-6726484-K12 -23Interchangeable
interchangeable cross-reference
interchangeable
79NM02Interchangeable
interchangeable cross-reference
interchangeable
MIL-N-25027Interchangeable
Same NIIN cross-reference
interchangeable
7600027Interchangeable
Same NIIN cross-reference
interchangeable
NASM21044Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN365-420C?
AN365-420C is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace AN365-420C?
There are 7 known substitutes for AN365-420C: 203-1011P63, 441-6726484-K12 -23, 79NM02 and 4 more. Substitute compatibility should be verified for your specific system.
Is AN365-420C still available?
AN365-420C is currently cancelled.
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