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PartsTable / COMPONENT / AN75A34
AN75A34 ✓ 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: 3.000 INCHES NOMINAL IN, head_height: 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-051-2343, 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
AN75A34
NSN: 5306-00-051-2343
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length3.000 INCHES NOMINAL IN
head_height0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.062 INCHES NOMINAL IN
hole_quantity6
thread_length0.547 INCHES MINIMUM IN
fastener_length3.547 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5306-00-051-2343
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN75A34 · 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
•
GRIP LENGTH: 3.000 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FASTENER LENGTH: 3.547 INCHES NOMINAL IN
•
HOLE QUANTITY: 6
•
HOLE TYPE: DRILLED
•
HOLE DIAMETER: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
GRIP LENGTH3.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
NOMINAL THREAD DIAMETER0.312 INCHES IN
FASTENER LENGTH3.547 INCHES NOMINAL IN
HOLE QUANTITY6
HOLE TYPEDRILLED
HOLE DIAMETER0.062 INCHES NOMINAL IN
THREAD QUANTITY PER INCH18
HEAD STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
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 AN75A34?
AN75A34 is a BOLT,MACHINE.
What parts can replace AN75A34?
There are 20 known substitutes for AN75A34: AN173-21A, B6812, AN173H21A and 17 more. Substitute compatibility should be verified for your specific system.
Is AN75A34 still available?
AN75A34 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