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8511128 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8511128: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, thread_length: 0.344 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-563-4058, 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
8511128
NSN: 5306-00-563-4058
FSC: 5306 — Bolts
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
thread_length0.344 INCHES MINIMUM IN
fastener_length1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.437 INCHES IN
NSN5306-00-563-4058
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8511128 · 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
•
WIDTH ACROSS FLATS: 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.344 INCHES MINIMUM IN
•
FIRST DIAMETER FROM HEAD: 0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 0.896 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.437 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
HEAD HEIGHT0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
FASTENER LENGTH1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.344 INCHES MINIMUM IN
FIRST DIAMETER FROM HEAD0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.896 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.437 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
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

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 8511128?
8511128 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 8511128?
8511128 is cataloged in the U.S. Government catalog under NSN 5306-00-563-4058. This indicates validated use in U.S. government and defense supply chains.
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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.