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PartsTable / COMPONENT / AN75A54
AN75A54 ✓ 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: 5.000 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 5306-00-051-2349, 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
AN75A54
NSN: 5306-00-051-2349
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length5.000 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_length5.547 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5306-00-051-2349
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN75A54 · 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 LENGTH: 0.547 INCHES MINIMUM IN
•
GRIP LENGTH: 5.000 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD QUANTITY PER INCH: 18
•
HOLE TYPE: DRILLED
•
HOLE CONFIGURATION STYLE: HEXAGON LONGITUDINAL HOLE
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.547 INCHES MINIMUM IN
GRIP LENGTH5.000 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD QUANTITY PER INCH18
HOLE TYPEDRILLED
HOLE CONFIGURATION STYLEHEXAGON LONGITUDINAL HOLE
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A A
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
HEAD STYLEHEXAGON
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 AN75A54?
AN75A54 is a BOLT,MACHINE.
What parts can replace AN75A54?
There are 21 known substitutes for AN75A54: AN173-21A, B6812, AN173H21A and 18 more. Substitute compatibility should be verified for your specific system.
Is AN75A54 still available?
AN75A54 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