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Technical Data Sheet
PartsTable / COMPONENT / 4T6811
4T6811 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.094 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.625 INCHES MAXIMUM IN, screw_material: STEEL, fastener_length: 0.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-285-5581, 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
4T6811
NSN: 5305-00-285-5581
FSC: 5305
CAGE: 57712 — TELEMECHANICS INC (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.094 INCHES NOMINAL IN
thread_class3A A
thread_length0.625 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedCASEHARDENED
width_between_flats0.250 INCHES NOMINAL IN
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentCHROMATE ZINC
NSN5305-00-285-5581
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4T6811 · 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
•
THREAD CLASS: 3A A
•
FEATURES PROVIDED: CASEHARDENED
•
SCREW MATERIAL: STEEL
•
WIDTH BETWEEN FLATS: 0.250 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
THREAD LENGTH: 0.625 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 40
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
FEATURES PROVIDEDCASEHARDENED
SCREW MATERIALSTEEL
WIDTH BETWEEN FLATS0.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD LENGTH0.625 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
THREAD QUANTITY PER INCH40
HEAD HEIGHT0.094 INCHES NOMINAL IN
SCREW SURFACE TREATMENTCHROMATE ZINC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
068-01100Interchangeable
interchangeable cross-reference
interchangeable
68-11Interchangeable
interchangeable cross-reference
interchangeable
EB6811Interchangeable
interchangeable cross-reference
interchangeable
3R77-P681JInterchangeable
interchangeable cross-reference
interchangeable
802-681-05Interchangeable
interchangeable cross-reference
interchangeable
9B6742Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4T6811?
4T6811 is a SCREW,MACHINE.
What parts can replace 4T6811?
There are 17 known substitutes for 4T6811: 068-01100, 68-11, EB6811 and 14 more. Substitute compatibility should be verified for your specific system.
Is 4T6811 still available?
4T6811 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026