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5325PL1557543 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5325PL1557543: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.329 INCHES MINIMUM IN, material: STEEL COMP 4140 OR STEEL COMP 8740 OVERALL, drive_type: TORQUE SET, grip_length: 0.150 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN, extension_length: 0.210 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-509-5671, 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
5325PL1557543
NSN: 5325-01-509-5671
FSC: 5325 — Fastening Devices
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
diameter0.329 INCHES MINIMUM IN
materialSTEEL COMP 4140 OR STEEL COMP 8740 OVERALL
drive_typeTORQUE SET
grip_length0.150 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
extension_length0.210 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
end_item_identificationHELICOPTER, UH-TIGER
turnlock_stud_head_styleFLAT COUNTERSUNK
stud_shank_major_diameter0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_document_and_classificationMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
stud_thread_size_and_series/type_designator0.164-32-3B UNIFIED NATIONAL COARSE (UNC)
NSN5325-01-509-5671
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5325PL1557543 · 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 DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
DRIVE TYPE: TORQUE SET
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
EXTENSION LENGTH: 0.210 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.329 INCHES MINIMUM IN
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
STUD SHANK MAJOR DIAMETER: 0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
DRIVE TYPETORQUE SET
TURNLOCK STUD SHANK STYLESTUD SHANK
EXTENSION LENGTH0.210 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
DIAMETER0.329 INCHES MINIMUM IN
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
STUD SHANK MAJOR DIAMETER0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
END ITEM IDENTIFICATIONHELICOPTER, UH-TIGER
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5325PL1557543?
5325PL1557543 is a STUD,TURNLOCK FASTENER.
What is the NSN for 5325PL1557543?
5325PL1557543 is cataloged in the U.S. Government catalog under NSN 5325-01-509-5671. 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.