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PartsTable / COMPONENT / AN520-6-7
AN520-6-7 ✓ 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 SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.103 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, thread_length: 0.388 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, screw_material: STEEL OR STEEL COMP 1010. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-156-2822, 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
AN520-6-7
NSN: 5305-00-156-2822
FSC: 5305
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleROUND
head_height0.103 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
thread_length0.388 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
screw_materialSTEEL OR STEEL COMP 1010
fastener_length0.438 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentCADMIUM
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
NSN5305-00-156-2822
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN520-6-7 · 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 QUANTITY PER INCH: 40
•
THREAD CLASS: 2A A
•
MINIMUM TENSILE STRENGTH: 55000 POUNDS PER SQUARE INCH LBS
•
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
•
SCREW SURFACE TREATMENT: CADMIUM
•
HEAD HEIGHT: 0.103 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH40
THREAD CLASS2A A
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENTCADMIUM
HEAD HEIGHT0.103 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
THREAD SERIES DESIGNATORUNF
THREAD LENGTH0.388 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
HEAD STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
610697Interchangeable
interchangeable cross-reference
interchangeable
900553Interchangeable
interchangeable cross-reference
interchangeable
25T819D7Interchangeable
interchangeable cross-reference
interchangeable
SL5018PC6Interchangeable
interchangeable cross-reference
interchangeable
SL5258PC6Interchangeable
interchangeable cross-reference
interchangeable
039-520-110Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN520-6-7?
AN520-6-7 is a SCREW,MACHINE.
What parts can replace AN520-6-7?
There are 12 known substitutes for AN520-6-7: 610697, 900553, 25T819D7 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN520-6-7?
AN520-6-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-156-2822. 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