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Technical Data Sheet
PartsTable / COMPONENT / AJ3-25
AJ3-25 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, material: STEEL OVERALL, drive_type: SLOTTED, grip_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, shank_neck_length: 0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-282-8138, 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
AJ3-25
NSN: 5325-00-282-8138
FSC: 5325
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
materialSTEEL OVERALL
drive_typeSLOTTED
grip_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
shank_neck_length0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.090 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
NSN5325-00-282-8138
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AJ3-25 · 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
•
DIAMETER: 0.312 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1315 OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL ACCOMMODATED THICKNESS: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
TURNLOCK STUD HEAD STYLE: FILLISTER
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
SHANK NECK LENGTH: 0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
•
STUD SHANK MAJOR DIAMETER: 0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER0.312 INCHES NOMINAL IN
MATERIALSTEEL COMP 1315 OVERALL
SURFACE TREATMENTCADMIUM OVERALL
MATERIAL ACCOMMODATED THICKNESS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFILLISTER
TURNLOCK STUD SHANK STYLESTUD SHANK
SHANK NECK LENGTH0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
STUD SHANK MAJOR DIAMETER0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
DRIVE TYPESLOTTED
GRIP LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
K-500-CH-1156Interchangeable
interchangeable cross-reference
interchangeable
150635R92Interchangeable
interchangeable cross-reference
interchangeable
CPL6R52Interchangeable
interchangeable cross-reference
interchangeable
810240-1Interchangeable
interchangeable cross-reference
interchangeable
RF2550-30Interchangeable
interchangeable cross-reference
interchangeable
2132381-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AJ3-25?
AJ3-25 is a STUD,TURNLOCK FASTENER.
What parts can replace AJ3-25?
There are 26 known substitutes for AJ3-25: K-500-CH-1156, 150635R92, CPL6R52 and 23 more. Substitute compatibility should be verified for your specific system.
Is AJ3-25 still available?
AJ3-25 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026