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BACB30MT6T18X — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BACB30MT6T18X: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include MATERIAL: STEEL COMP H11 OVERALL, HOLE TYPE: DRILLEDDRILLED, HEAD HEIGHT: 0.297 INCHES NOMINAL0.297 INCHES NOMINAL IN, HOLE DIAMETER: 0.055 INCHES NOMINAL0.055 INCHES NOMINAL IN, HOLE QUANTITY: 44, THREAD LENGTH: 0.643 INCHES NOMINAL0.643 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-140-8262, 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
BACB30MT6T18X
NSN: 5306-01-140-8262
FSC: 5306 — Bolts
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
MATERIALSTEEL COMP H11 OVERALL
HOLE TYPEDRILLEDDRILLED
HEAD HEIGHT0.297 INCHES NOMINAL0.297 INCHES NOMINAL IN
HOLE DIAMETER0.055 INCHES NOMINAL0.055 INCHES NOMINAL IN
HOLE QUANTITY44
THREAD LENGTH0.643 INCHES NOMINAL0.643 INCHES NOMINAL IN
FASTENER LENGTH1.018 INCHES NOMINAL1.018 INCHES NOMINAL IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM OVERALL49.0 ROCKWELL C MAXIMUM OVERALL
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
SURFACE TREATMENTNICKEL OR NICKEL OR CADMIUM OVERALLCADMIUM OVERALL
WIDTH BETWEEN FLATS0.507 INCHES NOMINAL0.507 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.644 INCHES NOMINAL0.644 INCHES NOMINAL IN
NSN5306-01-140-8262
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACB30MT6T18X · 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
•
EXTENDED WASHER THICKNESS: 0.091 INCHES NOMINAL0.091 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.297 INCHES NOMINAL0.297 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.018 INCHES NOMINAL1.018 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.644 INCHES NOMINAL0.644 INCHES NOMINAL IN
•
THREAD LENGTH: 0.643 INCHES NOMINAL0.643 INCHES NOMINAL IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM OVERALL49.0 ROCKWELL C MAXIMUM OVERALL
•
HOLE CONFIGURATION STYLE: DOUBLE HEXAGON LONGITUDINAL HOLEDOUBLE HEXAGON LONGITUDINAL HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.091 INCHES NOMINAL0.091 INCHES NOMINAL IN
HEAD HEIGHT0.297 INCHES NOMINAL0.297 INCHES NOMINAL IN
FASTENER LENGTH1.018 INCHES NOMINAL1.018 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.644 INCHES NOMINAL0.644 INCHES NOMINAL IN
THREAD LENGTH0.643 INCHES NOMINAL0.643 INCHES NOMINAL IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM OVERALL49.0 ROCKWELL C MAXIMUM OVERALL
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLEDOUBLE HEXAGON LONGITUDINAL HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
WIDTH BETWEEN FLATS0.507 INCHES NOMINAL0.507 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACB30MT6T18X?
BACB30MT6T18X is a BOLT,MACHINE.
What is the NSN for BACB30MT6T18X?
BACB30MT6T18X is cataloged in the U.S. Government catalog under NSN 5306-01-140-8262. 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.