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720S125ST16 — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

720S125ST16: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, head_length: 0.112 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN, thread_class: 2A NUT THREAD A, head_diameter: 0.380 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN, thread_length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM NUT THREAD IN, overall_length: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-003-9531, 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
720S125ST16
NSN: 5307-00-003-9531
FSC: 5307 — Studs
CAGE: 86577 — PRECISION METAL PRODUCTS CO (USA)
SPECIFICATIONS
materialSTEEL COMP 303
head_length0.112 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
thread_class2A NUT THREAD A
head_diameter0.380 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
thread_length0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM NUT THREAD IN
overall_length0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
locking_featureSELF-CLINCHING HEAD
style_designatorSELF-LOCKING
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.250 INCHES NUT THREAD IN
distance_across_flats0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN
NSN5307-00-003-9531
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 720S125ST16 · 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: MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM NUT THREAD IN
•
STYLE DESIGNATOR: SELF-LOCKING
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
NOMINAL THREAD SIZE: 0.250 INCHES NUT THREAD IN
•
HEAD LENGTH: 0.112 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM NUT THREAD IN
STYLE DESIGNATORSELF-LOCKING
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.250 INCHES NUT THREAD IN
HEAD LENGTH0.112 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
LOCKING FEATURESELF-CLINCHING HEAD
SURFACE TREATMENTPASSIVATE OVERALL
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-021-9733 5307-00-039-0367 5307-00-061-0087 5307-00-073-5156 5307-00-075-3758 5307-00-080-2016 5307-00-080-2020 5307-01-299-7402
SUBSTITUTES & CROSS-REFERENCES 5
234-1015P20Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
RCS1-20712516Reference document
Same NSN cross-reference
Reference document — Secondary reference
M63540/3-31-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
610073P83Reference document
Same NSN cross-reference
Reference document — Secondary reference
NCS420-4-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 720S125ST16?
720S125ST16 is a STUD,SELF-LOCKING.
What parts can replace 720S125ST16?
There are 5 known substitutes for 720S125ST16: 234-1015P20, RCS1-20712516, M63540/3-31-8 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 720S125ST16?
720S125ST16 is cataloged in the U.S. Government catalog under NSN 5307-00-003-9531. 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.