PartsTable
Technical Data Sheet
AN121501 ✓ 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: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, hardness_rating: 25.0 ROCKWELL C MINIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-282-4779, 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
AN121501
NSN: 5310-00-282-4779
FSC: 5310
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
hardness_rating25.0 ROCKWELL C MINIMUM
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch32
NSN5310-00-282-4779
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN121501 · 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
NUT HEIGHT: 0.156 INCHES NOMINAL IN
THREAD QUANTITY PER INCH: 32
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
HARDNESS RATING: 29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
NOMINAL THREAD SIZE: 0.190 INCHES IN
THREAD SERIES: UNF
WIDTH ACROSS FLATS: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
NUT HEIGHT0.156 INCHES NOMINAL IN
THREAD QUANTITY PER INCH32
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
HARDNESS RATING29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
NOMINAL THREAD SIZE0.190 INCHES IN
THREAD SERIESUNF
WIDTH ACROSS FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
FAC01017Interchangeable
interchangeable cross-reference
interchangeable
A-A-2311 TY1Interchangeable
interchangeable cross-reference
interchangeable
GGG-F-325 TY7STAInterchangeable
interchangeable cross-reference
interchangeable
175944Interchangeable
interchangeable cross-reference
interchangeable
AN121501Interchangeable
interchangeable cross-reference
interchangeable
402816Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN121501?
AN121501 is a NUT,PLAIN,HEXAGON.
What parts can replace AN121501?
There are 17 known substitutes for AN121501: FAC01017, A-A-2311 TY1, GGG-F-325 TY7STA and 14 more. Substitute compatibility should be verified for your specific system.
Is AN121501 still available?
AN121501 is currently cancelled.
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