PartsTable
Technical Data Sheet
Download PDF

GB511W10-68 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GB511W10-68: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 4.240 INCHES MINIMUM AND 4.260 INCHES MAXIMUM IN, head_height: 0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.843 INCHES MINIMUM AND 0.893 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-529-9235, 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
GB511W10-68
NSN: 5306-00-529-9235
FSC: 5306 — Bolts
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleDOUBLE HEXAGON W/HOLE
grip_length4.240 INCHES MINIMUM AND 4.260 INCHES MAXIMUM IN
head_height0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
thread_class3A A
thread_length0.843 INCHES MINIMUM AND 0.893 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length5.103 INCHES MINIMUM AND 5.133 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentCADMIUM OVERALL
width_between_flats0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
NSN5306-00-529-9235
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GB511W10-68 · 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
•
SURFACE FINISH: 32.0 MICROINCHES GRIP
•
EXTENDED WASHER THICKNESS: 0.327 INCHES MINIMUM IN
•
HEAD HEIGHT: 0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
•
FASTENER LENGTH: 5.103 INCHES MINIMUM AND 5.133 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS 672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837,TY 2,CL 3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.843 INCHES MINIMUM AND 0.893 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
EXTENDED WASHER THICKNESS0.327 INCHES MINIMUM IN
HEAD HEIGHT0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
FASTENER LENGTH5.103 INCHES MINIMUM AND 5.133 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS 672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837,TY 2,CL 3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN
THREAD LENGTH0.843 INCHES MINIMUM AND 0.893 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES 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 1
BM3315-10-68Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy GB511W10-68?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is GB511W10-68?
GB511W10-68 is a BOLT,MACHINE.
What parts can replace GB511W10-68?
There is 1 known substitute for GB511W10-68: BM3315-10-68. Substitute compatibility should be verified for your specific system.
What is the NSN for GB511W10-68?
GB511W10-68 is cataloged in the U.S. Government catalog under NSN 5306-00-529-9235. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — GB511W10-68

✓ 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.