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Technical Data Sheet
PartsTable / COMPONENT / AN12-43A
AN12-43A ✓ 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 head_style: HEXAGON, grip_length: 3.438 INCHES NOMINAL IN, head_height: 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 1.093 INCHES MINIMUM IN, fastener_length: 4.531 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-590-2700, 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
AN12-43A
NSN: 5306-00-590-2700
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
head_styleHEXAGON
grip_length3.438 INCHES NOMINAL IN
head_height0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
thread_class3A A
thread_length1.093 INCHES MINIMUM IN
fastener_length4.531 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_between_flats1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN
NSN5306-00-590-2700
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN12-43A · 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: 1.093 INCHES MINIMUM IN
•
GRIP LENGTH: 3.438 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 16
•
NOMINAL THREAD DIAMETER: 0.750 INCHES IN
•
HEAD STYLE: HEXAGON
•
WIDTH BETWEEN FLATS: 1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY2,CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH1.093 INCHES MINIMUM IN
GRIP LENGTH3.438 INCHES NOMINAL IN
HEAD HEIGHT0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH16
NOMINAL THREAD DIAMETER0.750 INCHES IN
HEAD STYLEHEXAGON
WIDTH BETWEEN FLATS1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL
FEATURES PROVIDEDFINISHED HEAD
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
AN7CH12AInterchangeable
interchangeable cross-reference
interchangeable
NASM3 THRU 20Interchangeable
interchangeable cross-reference
interchangeable
6253R300PC95Interchangeable
interchangeable cross-reference
interchangeable
805136Interchangeable
interchangeable cross-reference
interchangeable
AN8-20AInterchangeable
interchangeable cross-reference
interchangeable
AN14CH40AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN12-43A?
AN12-43A is a BOLT,MACHINE.
What parts can replace AN12-43A?
There are 7 known substitutes for AN12-43A: AN7CH12A, NASM3 THRU 20, 6253R300PC95 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN12-43A?
AN12-43A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-590-2700. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026