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1551AS425-5 — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1551AS425-5: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include material: STEEL, thread_class: 3A NUT THREAD A, head_diameter: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN, thread_length: 0.703 INCHES MINIMUM AND 0.733 INCHES MAXIMUM NUT THREAD IN, overall_length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN, locking_feature: SELF-CLINCHING HEAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-189-6559, 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
1551AS425-5
NSN: 5307-01-189-6559
FSC: 5307 — Studs
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL
thread_class3A NUT THREAD A
head_diameter0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
thread_length0.703 INCHES MINIMUM AND 0.733 INCHES MAXIMUM NUT THREAD IN
overall_length0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
locking_featureSELF-CLINCHING HEAD
style_designatorSELF-LOCKING
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.190 INCHES NUT THREAD IN
thread_quantity_per_inch32 NUT THREAD
thread_series_designatorUNF NUT THREAD
NSN5307-01-189-6559
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1551AS425-5 · 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 LENGTH: 0.703 INCHES MINIMUM AND 0.733 INCHES MAXIMUM NUT THREAD IN
•
STYLE DESIGNATOR: SELF-LOCKING
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
NOMINAL THREAD SIZE: 0.190 INCHES NUT THREAD IN
•
LOCKING FEATURE: SELF-CLINCHING HEAD
•
THREAD CLASS: 3A NUT THREAD A
•
THREAD QUANTITY PER INCH: 32 NUT THREAD
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.703 INCHES MINIMUM AND 0.733 INCHES MAXIMUM NUT THREAD IN
STYLE DESIGNATORSELF-LOCKING
OVERALL LENGTH0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.190 INCHES NUT THREAD IN
LOCKING FEATURESELF-CLINCHING HEAD
THREAD CLASS3A NUT THREAD A
THREAD QUANTITY PER INCH32 NUT THREAD
MATERIALSTEEL
THREAD SERIES DESIGNATORUNF 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 1
FH032-12Reference 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 1551AS425-5?
1551AS425-5 is a STUD,SELF-LOCKING.
What parts can replace 1551AS425-5?
There is 1 known substitute for 1551AS425-5: FH032-12. Substitute compatibility should be verified for your specific system.
What is the NSN for 1551AS425-5?
1551AS425-5 is cataloged in the U.S. Government catalog under NSN 5307-01-189-6559. 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.