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Technical Data Sheet
PartsTable / COMPONENT / AN6-44
AN6-44 ✓ 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: 3.922 INCHES MINIMUM AND 3.953 INCHES MAXIMUM IN, head_height: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.609 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN, fastener_length: 4.562 INCHES MINIMUM AND 4.609 INCHES MAXIMUM 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 5306-00-167-3706, 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
AN6-44
NSN: 5306-00-167-3706
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
head_styleHEXAGON
grip_length3.922 INCHES MINIMUM AND 3.953 INCHES MAXIMUM IN
head_height0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
thread_class3A A
thread_length0.609 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
fastener_length4.562 INCHES MINIMUM AND 4.609 INCHES MAXIMUM 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_flats0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
NSN5306-00-167-3706
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN6-44 · 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
•
FASTENER LENGTH: 4.562 INCHES MINIMUM AND 4.609 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
THREAD CLASS: 3A A
•
HEAD HEIGHT: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 3.922 INCHES MINIMUM AND 3.953 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 ASSN STD 1ST TREATMENT RESPONSE OVERALL
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 4.359 INCHES MINIMUM AND 4.391 INCHES MAXIMUM FIRST HOLE IN
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH4.562 INCHES MINIMUM AND 4.609 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
THREAD CLASS3A A
HEAD HEIGHT0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH3.922 INCHES MINIMUM AND 3.953 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 ASSN STD 1ST TREATMENT RESPONSE OVERALL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER4.359 INCHES MINIMUM AND 4.391 INCHES MAXIMUM FIRST HOLE IN
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE IN
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
3110001561432Interchangeable
interchangeable cross-reference
interchangeable
3110-156-1432Interchangeable
interchangeable cross-reference
interchangeable
60620P255Interchangeable
interchangeable cross-reference
interchangeable
22216Interchangeable
C0ver,breather,cyli
interchangeable
7406260Interchangeable
C0ver,breather,cyli
interchangeable
13581Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN6-44?
AN6-44 is a BOLT,MACHINE.
What parts can replace AN6-44?
There are 14 known substitutes for AN6-44: 3110001561432, 3110-156-1432, 60620P255 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN6-44?
AN6-44 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-167-3706. 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