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121J-430-SS — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

121J-430-SS: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, material: STEEL OVERALL, drive_type: SLOTTED, grip_length: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, shank_neck_length: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-140-6380, 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
121J-430-SS
NSN: 5325-01-140-6380
FSC: 5325 — Fastening Devices
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
diameter0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
materialSTEEL OVERALL
drive_typeSLOTTED
grip_length0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
shank_neck_length0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
securing_device_typeSPRING
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
NSN5325-01-140-6380
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 121J-430-SS · 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
•
DRIVE TYPE: SLOTTED
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
DIAMETER: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
SHANK NECK LENGTH: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: SPRING
•
TURNLOCK STUD HEAD STYLE: FILLISTER
•
STUD SHANK MAJOR DIAMETER: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
DRIVE TYPESLOTTED
TURNLOCK STUD SHANK STYLESTUD SHANK
DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
SHANK NECK LENGTH0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
SECURING DEVICE TYPESPRING
TURNLOCK STUD HEAD STYLEFILLISTER
STUD SHANK MAJOR DIAMETER0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
GRIP LENGTH0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
AJ4-30SSReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121J-430-SS?
121J-430-SS is a STUD,TURNLOCK FASTENER.
What parts can replace 121J-430-SS?
There is 1 known substitute for 121J-430-SS: AJ4-30SS. Substitute compatibility should be verified for your specific system.
What is the NSN for 121J-430-SS?
121J-430-SS is cataloged in the U.S. Government catalog under NSN 5325-01-140-6380. 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.