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CA18161-9HS — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

CA18161-9HS: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN, material: STEEL COMP 303 BARREL, grip_length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, surface_treatment: PASSIVATE BARREL, turnlock_stud_head_style: FILLISTER, stud_shank_major_diameter: 0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-435-9345, 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
CA18161-9HS
NSN: 5325-01-435-9345
NIINs: 014359345, 014695868
FSC: 5325 — Fastening Devices
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)
SPECIFICATIONS
diameter0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
materialSTEEL COMP 303 BARREL
grip_length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_treatmentPASSIVATE BARREL
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
part_name_assigned_by_controlling_agencyFASTENER,POSITIVE LOCK
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5325-01-435-9345
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CA18161-9HS · 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: PASSIVATE BARREL
•
MATERIAL: STEEL COMP 303 BARREL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENTPASSIVATE BARREL
MATERIALSTEEL COMP 303 BARREL
SUBSTITUTES & CROSS-REFERENCES 2
B3280/43085Reference document
Same NSN cross-reference
Reference document — Secondary reference
3280/43085Reference 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 CA18161-9HS?
CA18161-9HS is a STUD,TURNLOCK FASTENER.
What parts can replace CA18161-9HS?
There are 2 known substitutes for CA18161-9HS: B3280/43085, 3280/43085. Substitute compatibility should be verified for your specific system.
What is the NSN for CA18161-9HS?
CA18161-9HS is cataloged in the U.S. Government catalog under NSN 5325-01-435-9345. 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.