PartsTable
Technical Data Sheet
B6812 ✓ 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 BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_type: DRILLED, head_style: HEXAGON, grip_length: 2.438 INCHES NOMINAL IN, head_height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, head_length: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-051-2338, 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
B6812
NSN: 5306-00-051-2338
FSC: 5306
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length2.438 INCHES NOMINAL IN
head_height0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
head_length0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
shank_length0.640 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN
head_diameter1.000 INCHES NOMINAL IN
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity6
NSN5306-00-051-2338
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B6812 · 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
FEATURES PROVIDED: FINISHED HEAD
THREAD LENGTH: 0.547 INCHES MINIMUM IN
THREAD CLASS: 3A A
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
HEAD STYLE: HEXAGON
THREAD DIRECTION: RIGHT-HAND
HOLE QUANTITY: 6
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDFINISHED HEAD
THREAD LENGTH0.547 INCHES MINIMUM IN
THREAD CLASS3A A
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
HOLE QUANTITY6
HOLE TYPEDRILLED
GRIP LENGTH2.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
AN173-21AUpgraded Successor
successor cross-reference
successor
B6812Upgraded Successor
successor cross-reference
successor
AN173H21AUpgraded Successor
successor cross-reference
successor
AN174-40Upgraded Successor
successor cross-reference
successor
AN174H40Upgraded Successor
successor cross-reference
successor
AN174H37Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B6812?
B6812 is a BOLT,MACHINE.
What parts can replace B6812?
There are 21 known substitutes for B6812: AN173-21A, B6812, AN173H21A and 18 more. Substitute compatibility should be verified for your specific system.
Is B6812 still available?
B6812 is currently cancelled.
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