PartsTable
Technical Data Sheet
401870J ✓ 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 8640, thread_class: 3A NUT THREAD A, thread_length: 0.500 INCHES MINIMUM STUD THREAD IN, overall_length: 1.120 INCHES MINIMUM IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND NUT THREAD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-741-5371, 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
401870J
NSN: 5307-00-741-5371
FSC: 5307
CAGE: 28839 — TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 8640
thread_class3A NUT THREAD A
thread_length0.500 INCHES MINIMUM STUD THREAD IN
overall_length1.120 INCHES MINIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.250 INCHES NUT THREAD IN
thread_pitch_diameters+0.2351 TO 0.2364 INCHES STUD THREAD IN
cotter_pin_hole_diameter0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
thread_quantity_per_inch20 STUD THREAD
thread_series_designatorUNF NUT THREAD
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-00-741-5371
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 401870J · 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
THREAD DIRECTION: RIGHT-HAND STUD THREAD
SURFACE TREATMENT: CADMIUM OVERALL
THREAD LENGTH: 0.500 INCHES MINIMUM STUD THREAD IN
MATERIAL: STEEL COMP 8640
THREAD PITCH DIAMETERS: +0.2351 TO 0.2364 INCHES STUD THREAD IN
THREAD SERIES DESIGNATOR: UNS STUD THREAD
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A NUT THREAD A
THREAD DIRECTIONRIGHT-HAND STUD THREAD
SURFACE TREATMENTCADMIUM OVERALL
THREAD LENGTH0.500 INCHES MINIMUM STUD THREAD IN
MATERIALSTEEL COMP 8640
THREAD PITCH DIAMETERS+0.2351 TO 0.2364 INCHES STUD THREAD IN
THREAD SERIES DESIGNATORUNS STUD THREAD
SPECIAL FEATURESSTUD END THREAD 0.012 IN. OVERSIZE IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
NOMINAL THREAD SIZE0.250 INCHES STUD THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
00308Interchangeable
interchangeable cross-reference
interchangeable
401870JInterchangeable
interchangeable cross-reference
interchangeable
401870P012Interchangeable
interchangeable cross-reference
interchangeable
9786E107-2Interchangeable
Same NIIN cross-reference
interchangeable
5307007415371Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 401870J?
401870J is a STUD,PLAIN.
What parts can replace 401870J?
There are 5 known substitutes for 401870J: 00308, 401870J, 401870P012 and 2 more. Substitute compatibility should be verified for your specific system.
Is 401870J still available?
401870J is currently cancelled.
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