PartsTable
Technical Data Sheet
PartsTable / COMPONENT / AN7-40
AN7-40 ✓ 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: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.656 INCHES MINIMUM IN, fastener_length: 4.094 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 5306-00-156-2653, 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
AN7-40
NSN: 5306-00-156-2653
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_height0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
thread_class3A A
thread_length0.656 INCHES MINIMUM IN
fastener_length4.094 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_flats0.615 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
NSN5306-00-156-2653
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN7-40 · 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: 0.656 INCHES MINIMUM IN
•
GRIP LENGTH: 3.438 INCHES NOMINAL IN
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
FASTENER LENGTH: 4.094 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.106 INCHES NOMINAL FIRST HOLE IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.656 INCHES MINIMUM IN
GRIP LENGTH3.438 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
NOMINAL THREAD DIAMETER0.438 INCHES IN
FASTENER LENGTH4.094 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES NOMINAL FIRST HOLE IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
B32234A3473KInterchangeable
interchangeable cross-reference
interchangeable
C280AEA47KInterchangeable
interchangeable cross-reference
interchangeable
271858Interchangeable
interchangeable cross-reference
interchangeable
00277Interchangeable
interchangeable cross-reference
interchangeable
400277Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy AN7-40?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is AN7-40?
AN7-40 is a BOLT,MACHINE.
What parts can replace AN7-40?
There are 5 known substitutes for AN7-40: B32234A3473K, C280AEA47K, 271858 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN7-40?
AN7-40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-156-2653. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — AN7-40

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026