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GB511B9-27 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GB511B9-27: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OR STEEL OVERALL, head_style: DOUBLE HEXAGON, grip_length: 1.688 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN, head_height: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.5607 INCHES MINIMUM AND 0.5616 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-150-3553, 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
GB511B9-27
NSN: 5306-00-150-3553
FSC: 5306 — Bolts
CAGE: L4528 — LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC (CAN)
SPECIFICATIONS
materialSTEEL COMP H11 OR STEEL OVERALL
head_styleDOUBLE HEXAGON
grip_length1.688 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
head_height0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.5607 INCHES MINIMUM AND 0.5616 INCHES MAXIMUM IN
thread_length0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
fastener_length2.262 INCHES MINIMUM AND 2.309 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN
NSN5306-00-150-3553
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GB511B9-27 · 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: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.262 INCHES MINIMUM AND 2.309 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6485 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR SPS-M-107 FSCM 56878 MFR REF 2ND MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.562 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
FASTENER LENGTH2.262 INCHES MINIMUM AND 2.309 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6485 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR SPS-M-107 FSCM 56878 MFR REF 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.562 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA26512-6B511B MANUFACTURERS STANDARD
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 5
VS2521F9-27Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
EWSB22-9A27Reference document
Same NSN cross-reference
Reference document — Secondary reference
AIC516B9-27Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BM17020-9-27ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS2521-9F27Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 GB511B9-27?
GB511B9-27 is a BOLT,SHEAR.
What parts can replace GB511B9-27?
There are 5 known substitutes for GB511B9-27: VS2521F9-27, EWSB22-9A27, AIC516B9-27 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GB511B9-27?
GB511B9-27 is cataloged in the U.S. Government catalog under NSN 5306-00-150-3553. 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.