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GB511GF8H9 — GB511GF8H9

✓ Government record, cited
NORTHROP GRUMMAN SYSTEMS CORPORATION · BOLT SCREW
PRODUCT OVERVIEW

GB511GF8H9: GB511GF8H9.

The GB511GF8H9 is a NORTHROP GRUMMAN SYSTEMS CORPORATION industrial component. This part is cataloged in the U.S. Government catalog under NSN 5306-01-452-5746, 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
GB511GF8H9
NSN: 5306-01-452-5746
FSC: 5306 — Bolts
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
Part NumberGB511GF8H9
ManufacturerNORTHROP GRUMMAN SYSTEMS CORPORATION
NSN5306-01-452-5746
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GB511GF8H9 · NORTHROP GRUMMAN SYSTEMS CORPORATION ⚠ 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: 0.123 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.3285 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.762 INCHES NOMINAL IN
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.123 INCHES NOMINAL IN
HEAD HEIGHT0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
FASTENER LENGTH0.3285 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
THREAD LENGTH0.762 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 GB511GF8H9?
GB511GF8H9 is a GB511GF8H9 manufactured by NORTHROP GRUMMAN SYSTEMS CORPORATION.
What is the NSN for GB511GF8H9?
GB511GF8H9 is cataloged in the U.S. Government catalog under NSN 5306-01-452-5746. 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.