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GB511B7-83 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GB511B7-83: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include head_style: DOUBLE HEXAGON, grip_length: 5.178 INCHES MINIMUM AND 5.198 INCHES MAXIMUM IN, head_height: 0.257 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM IN, thread_length: 0.906 INCHES MINIMUM AND 0.973 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-026-2369, 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
GB511B7-83
NSN: 5306-00-026-2369
FSC: 5306 — Bolts
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
head_styleDOUBLE HEXAGON
grip_length5.178 INCHES MINIMUM AND 5.198 INCHES MAXIMUM IN
head_height0.257 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM IN
thread_length0.906 INCHES MINIMUM AND 0.973 INCHES MAXIMUM IN
fastener_length6.104 INCHES MINIMUM AND 6.151 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN
nominal_thread_diameter0.438 INCHES IN
NSN5306-00-026-2369
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GB511B7-83 · 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: 0.257 INCHES NOMINAL IN
•
FASTENER LENGTH: 6.104 INCHES MINIMUM AND 6.151 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.906 INCHES MINIMUM AND 0.973 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.257 INCHES NOMINAL IN
FASTENER LENGTH6.104 INCHES MINIMUM AND 6.151 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.906 INCHES MINIMUM AND 0.973 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA26512-GB511B MANUFACTURERS STANDARD
GRIP LENGTH5.178 INCHES MINIMUM AND 5.198 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
401-7-83Reference document
Same NSN cross-reference
Reference document — Secondary reference
VS2521-7F83Reference document
Same NSN cross-reference
Reference document — Secondary reference
EW5B22D7-A83Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AIC516B7-83Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
EWSB22-7A83Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GB511B7-83?
GB511B7-83 is a BOLT,SHEAR.
What parts can replace GB511B7-83?
There are 5 known substitutes for GB511B7-83: 401-7-83, VS2521-7F83, EW5B22D7-A83 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GB511B7-83?
GB511B7-83 is cataloged in the U.S. Government catalog under NSN 5306-00-026-2369. 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.