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Technical Data Sheet
PartsTable / COMPONENT / AN520-8-10
AN520-8-10 ✓ 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: 0.120 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN, thread_length: 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, screw_material: STEEL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-151-1580, 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
AN520-8-10
NSN: 5305-00-151-1580
FSC: 5305
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleROUND
head_height0.120 INCHES NOMINAL IN
thread_class2A A
head_diameter0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN
thread_length0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentCADMIUM
minimum_tensile_strength550000 POUNDS PER SQUARE INCH LBS
NSN5305-00-151-1580
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN520-8-10 · 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
•
MINIMUM TENSILE STRENGTH: 550000 POUNDS PER SQUARE INCH LBS
•
HEAD DIAMETER: 0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD CLASS: 2A A
•
FASTENER LENGTH: 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
HEAD STYLE: ROUND
•
THREAD DIRECTION: RIGHT-HAND
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM TENSILE STRENGTH550000 POUNDS PER SQUARE INCH LBS
HEAD DIAMETER0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNF
THREAD CLASS2A A
FASTENER LENGTH0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
HEAD STYLEROUND
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLESLOT
HEAD HEIGHT0.120 INCHES NOMINAL IN
THREAD LENGTH0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
28534Interchangeable
interchangeable cross-reference
interchangeable
677-1339-00Interchangeable
interchangeable cross-reference
interchangeable
124058Interchangeable
interchangeable cross-reference
interchangeable
23008Interchangeable
interchangeable cross-reference
interchangeable
19727Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN520-8-10?
AN520-8-10 is a SCREW,MACHINE.
What parts can replace AN520-8-10?
There are 5 known substitutes for AN520-8-10: 28534, 677-1339-00, 124058 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN520-8-10?
AN520-8-10 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-151-1580. 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