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GB511B8D16 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GB511B8D16: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: DOUBLE HEXAGON, grip_length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN, head_height: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-043-5711, 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
GB511B8D16
NSN: 5306-01-043-5711
FSC: 5306 — Bolts
CAGE: 06710 — VALLEY-TODECO, INC. DBA ARCONIC FASTENING SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleDOUBLE HEXAGON
grip_length0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
head_height0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
thread_class3A A
thread_length0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
nominal_thread_diameter0.500 INCHES IN
minimum_tensile_strength220000 POUNDS PER SQUARE INCH LBS
NSN5306-01-043-5711
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GB511B8D16 · 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 HEIGHT: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK UNTHREADED HOLE DIAMETER: 0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
SPECIFICATION/STANDARD DATA: 26512-GB511B MANUFACTURERS STANDARD
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
THREAD LENGTH0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA26512-GB511B MANUFACTURERS STANDARD
GRIP LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM 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 3
BM17020-8-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
EWSB22D8-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
VS3071-8F16DReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GB511B8D16?
GB511B8D16 is a BOLT,SHEAR.
What parts can replace GB511B8D16?
There are 3 known substitutes for GB511B8D16: BM17020-8-16, EWSB22D8-16, VS3071-8F16D. Substitute compatibility should be verified for your specific system.
What is the NSN for GB511B8D16?
GB511B8D16 is cataloged in the U.S. Government catalog under NSN 5306-01-043-5711. 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.