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401872J — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

401872J: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8640, thread_class: 3A STUD THREAD A, thread_length: 0.750 INCHES MINIMUM NUT THREAD IN, overall_length: 3.500 INCHES NOMINAL IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-776-7316, 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
401872J
NSN: 5307-00-776-7316
FSC: 5307 — Studs
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 8640
thread_class3A STUD THREAD A
thread_length0.750 INCHES MINIMUM NUT THREAD IN
overall_length3.500 INCHES NOMINAL IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.375 INCHES STUD THREADUNABLE TO DECODE IN
thread_pitch_diameters+0.3525 TO 0.3541 INCHES NUT THREADUNABLE TO DECODE IN
cotter_pin_hole_diameter0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
thread_quantity_per_inch16 NUT THREAD
thread_series_designatorUNABLE TO DECODE
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-00-776-7316
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 401872J · 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
•
COTTER PIN HOLE DIAMETER: 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
•
THREAD LENGTH: 0.750 INCHES MINIMUM NUT THREAD IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +0.3525 TO 0.3541 INCHES NUT THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
COTTER PIN HOLE DIAMETER0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
THREAD LENGTH0.750 INCHES MINIMUM NUT THREAD IN
THREAD LENGTH0.620 INCHES MINIMUM STUD THREAD IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+0.3525 TO 0.3541 INCHES NUT THREAD IN
THREAD PITCH DIAMETERS+0.3525 TO 0.3541 INCHES NUT THREADUNABLE TO DECODE IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH3.500 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD IN
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES 1
7767316Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 401872J?
401872J is a STUD,PLAIN.
What parts can replace 401872J?
There is 1 known substitute for 401872J: 7767316. Substitute compatibility should be verified for your specific system.
What is the NSN for 401872J?
401872J is cataloged in the U.S. Government catalog under NSN 5307-00-776-7316. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.