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521480S — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

521480S: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740, thread_class: 3A NUT THREAD A, thread_length: 0.560 INCHES MINIMUM AND 0.620 INCHES MAXIMUM STUD THREAD IN, overall_length: 1.180 INCHES NOMINAL IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND STUD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-335-4355, 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
521480S
NSN: 5307-00-335-4355
FSC: 5307 — Studs
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740
thread_class3A NUT THREAD A
thread_length0.560 INCHES MINIMUM AND 0.620 INCHES MAXIMUM STUD THREAD IN
overall_length1.180 INCHES NOMINAL IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.312 INCHES STUD THREAD IN
thread_pitch_diameters+0.2866 TO 0.2886 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
NSN5307-00-335-4355
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 521480S · 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: 0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM NUT THREAD IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +0.2866 TO 0.2886 INCHES STUD THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD ALL MATERIAL RESPONSES
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
TECHNICAL CHARACTERISTICS
COTTER PIN HOLE DIAMETER0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
THREAD LENGTH0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM NUT THREAD IN
THREAD LENGTH0.560 INCHES MINIMUM AND 0.620 INCHES MAXIMUM STUD THREAD IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+0.2866 TO 0.2886 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD ALL MATERIAL RESPONSES
OVERALL LENGTH1.180 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.312 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 521480S?
521480S is a STUD,PLAIN.
What is the NSN for 521480S?
521480S is cataloged in the U.S. Government catalog under NSN 5307-00-335-4355. 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.