PartsTable
Technical Data Sheet
Download PDF

401947H — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

401947H: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, thread_class: 3A NUT THREAD A, thread_length: 0.690 INCHES MINIMUM AND 0.780 INCHES MAXIMUM STUD THREAD IN, overall_length: 4.480 INCHES MINIMUM AND 4.520 INCHES MAXIMUM 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 U.S.

Government catalog under NSN 5307-00-679-4990, 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
401947H
NSN: 5307-00-679-4990
FSC: 5307 — Studs
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
thread_class3A NUT THREAD A
thread_length0.690 INCHES MINIMUM AND 0.780 INCHES MAXIMUM STUD THREAD IN
overall_length4.480 INCHES MINIMUM AND 4.520 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.312 INCHES NUT THREAD IN
thread_pitch_diameters+0.2854 TO 0.2869 INCHES STUD THREAD IN
cotter_pin_hole_diameter0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
thread_quantity_per_inch18 STUD THREAD
thread_series_designatorUNF NUT THREAD
NSN5307-00-679-4990
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 401947H · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
COTTER PIN HOLE DIAMETER: 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
•
THREAD LENGTH: 0.560 INCHES MINIMUM AND 0.660 INCHES MAXIMUM NUT THREAD IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +0.2854 TO 0.2869 INCHES STUD THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS A322 ASSN STD SINGLE MATERIAL RESPONSE OR AMS A331 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
COTTER PIN HOLE DIAMETER0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
THREAD LENGTH0.560 INCHES MINIMUM AND 0.660 INCHES MAXIMUM NUT THREAD IN
THREAD LENGTH0.690 INCHES MINIMUM AND 0.780 INCHES MAXIMUM STUD THREAD IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+0.2854 TO 0.2869 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS A322 ASSN STD SINGLE MATERIAL RESPONSE OR AMS A331 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH4.480 INCHES MINIMUM AND 4.520 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
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 2
7363442Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5307006794990Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 401947H?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 401947H?
401947H is a STUD,PLAIN.
What parts can replace 401947H?
There are 2 known substitutes for 401947H: 7363442, 5307006794990. Substitute compatibility should be verified for your specific system.
What is the NSN for 401947H?
401947H is cataloged in the U.S. Government catalog under NSN 5307-00-679-4990. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 401947H

✓ 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.