PartsTable
Technical Data Sheet
A340303 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, thread_class: 3A NUT THREAD A, thread_length: 1.000 INCHES NOMINAL NUT THREAD IN, overall_length: 3.125 INCHES NOMINAL IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND STUD THREAD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-534-0303, 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
A340303
NSN: 5307-00-534-0303
FSC: 5307
CAGE: 00000
SPECIFICATIONS
materialSTEEL COMP 4140
thread_class3A NUT THREAD A
thread_length1.000 INCHES NOMINAL NUT THREAD IN
overall_length3.125 INCHES NOMINAL IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.625 INCHES NUT THREAD IN
thread_pitch_diameters+0.5700 TO 0.5722 INCHES STUD THREAD IN
thread_quantity_per_inch18 NUT THREAD
thread_series_designatorUNF NUT THREAD
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-00-534-0303
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A340303 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD CLASS: 3A NUT THREAD A
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
THREAD SERIES DESIGNATOR: UNF NUT THREAD
THREAD DIRECTION: RIGHT-HAND NUT THREAD
THREAD QUANTITY PER INCH: 18 NUT THREAD
THREAD PITCH DIAMETERS: +0.5700 TO 0.5722 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A NUT THREAD A
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
THREAD SERIES DESIGNATORUNF NUT THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD QUANTITY PER INCH18 NUT THREAD
THREAD PITCH DIAMETERS+0.5700 TO 0.5722 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
THREAD SERIES DESIGNATORUNS STUD THREAD
NOMINAL THREAD SIZE0.625 INCHES NUT THREAD IN
THREAD QUANTITY PER INCH11 STUD THREAD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
44444Interchangeable
interchangeable cross-reference
interchangeable
60-1210Interchangeable
interchangeable cross-reference
interchangeable
PA7056Interchangeable
interchangeable cross-reference
interchangeable
1250473Interchangeable
interchangeable cross-reference
interchangeable
44464Interchangeable
interchangeable cross-reference
interchangeable
1486011-138Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A340303?
A340303 is a STUD,PLAIN.
What parts can replace A340303?
There are 11 known substitutes for A340303: 44444, 60-1210, PA7056 and 8 more. Substitute compatibility should be verified for your specific system.
Is A340303 still available?
A340303 is currently cancelled.
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