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Technical Data Sheet
PartsTable / COMPONENT / ANSI-B18.6.1
ANSI-B18.6.1 ✓ 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 ANSI-B18.6.1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-014-9394, 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
ANSI-B18.6.1
NSN: 5305-00-014-9394
FSC: 5305
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberANSI-B18.6.1
NSN5305-00-014-9394
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ANSI-B18.6.1 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.216 INCHES IN
•
NONMACHINE THREAD STYLE: GIMLET POINT (TYPE A, AB OR BA)
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
MATERIAL: COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 270 OVERALL
•
HEAD STYLE: FLAT COUNTERSUNK
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2C STYLE AND 12 SIZE
•
FASTENER LENGTH: 2.438 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.209 INCHES MINIMUM AND 0.216 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NONMACHINE NOMINAL THREAD DIAMETER0.216 INCHES IN
NONMACHINE THREAD STYLEGIMLET POINT (TYPE A, AB OR BA)
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
MATERIALCOPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 270 OVERALL
HEAD STYLEFLAT COUNTERSUNK
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2C STYLE AND 12 SIZE
FASTENER LENGTH2.438 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
HEAD DIAMETER0.209 INCHES MINIMUM AND 0.216 INCHES MAXIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
FF-S-111 TY1ST2CSZ12Interchangeable
Same NIIN cross-reference
interchangeable
149394Interchangeable
Same NIIN cross-reference
interchangeable
FF-S-111Interchangeable
Same NIIN cross-reference
interchangeable
MS35492Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ANSI-B18.6.1?
ANSI-B18.6.1 is a ANSI-B18.6.1.
What parts can replace ANSI-B18.6.1?
There are 4 known substitutes for ANSI-B18.6.1: FF-S-111 TY1ST2CSZ12, 149394, FF-S-111 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ANSI-B18.6.1?
ANSI-B18.6.1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-014-9394. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026