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Technical Data Sheet
PartsTable / COMPONENT / ASME-B18.6.4
ASME-B18.6.4 ✓ 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 ASME-B18.6.4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-052-8238, 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
ASME-B18.6.4
NSN: 5305-00-052-8238
FSC: 5305
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
Part NumberASME-B18.6.4
NSN5305-00-052-8238
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ASME-B18.6.4 · 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
•
HEAD DIAMETER: 0.407 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
NONMACHINE THREAD STYLE: GIMLET POINT (TYPE A, AB OR BA)
•
HEAD STYLE: PAN
•
FEATURES PROVIDED: CASEHARDENED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD ALL TREATMENT RESPONSES OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.407 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NONMACHINE THREAD STYLEGIMLET POINT (TYPE A, AB OR BA)
HEAD STYLEPAN
FEATURES PROVIDEDCASEHARDENED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
NONMACHINE NOMINAL THREAD DIAMETER0.216 INCHES IN
FASTENER LENGTH0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
AMSE-B18.6.4Interchangeable
interchangeable cross-reference
interchangeable
FF-S-107 TYAInterchangeable
interchangeable cross-reference
interchangeable
ANSI B18.6.4Interchangeable
interchangeable cross-reference
interchangeable
MS24617-46Interchangeable
interchangeable cross-reference
interchangeable
80096Interchangeable
interchangeable cross-reference
interchangeable
FF-S-107 TYABST PAN RECESSEDInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASME-B18.6.4?
ASME-B18.6.4 is a ASME-B18.6.4.
What parts can replace ASME-B18.6.4?
There are 26 known substitutes for ASME-B18.6.4: AMSE-B18.6.4, FF-S-107 TYA, ANSI B18.6.4 and 23 more. Substitute compatibility should be verified for your specific system.
Is ASME-B18.6.4 still available?
ASME-B18.6.4 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