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PartsTable / COMPONENT / D4-AJ3-35
D4-AJ3-35 ✓ 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: SOCKET, grip_length: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, shank_neck_length: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, turnlock_stud_head_style: FILLISTER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-178-0122, 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
D4-AJ3-35
NSN: 5325-01-178-0122
FSC: 5325
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
materialSTEEL OVERALL
drive_typeSOCKET
grip_length0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
shank_neck_length0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
NSN5325-01-178-0122
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: D4-AJ3-35 · 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
•
TURNLOCK STUD HEAD STYLE: FILLISTER
•
MATERIAL: STEEL OVERALL
•
DIAMETER: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
GRIP LENGTH: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
•
DRIVE TYPE: SOCKET
•
SHANK NECK LENGTH: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
STUD SHANK MAJOR DIAMETER: 0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
TURNLOCK STUD HEAD STYLEFILLISTER
MATERIALSTEEL OVERALL
DIAMETER0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
GRIP LENGTH0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
DRIVE TYPESOCKET
SHANK NECK LENGTH0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
STUD SHANK MAJOR DIAMETER0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
121J-335-C3CInterchangeable
interchangeable cross-reference
interchangeable
221219Interchangeable
interchangeable cross-reference
interchangeable
012-1004-004Interchangeable
interchangeable cross-reference
interchangeable
HS5274-0001Interchangeable
Same NIIN cross-reference
interchangeable
AJ3-35Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D4-AJ3-35?
D4-AJ3-35 is a STUD,TURNLOCK FASTENER.
What parts can replace D4-AJ3-35?
There are 5 known substitutes for D4-AJ3-35: 121J-335-C3C, 221219, 012-1004-004 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D4-AJ3-35?
D4-AJ3-35 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-178-0122. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026