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AN520B10R7 — Technical Data Sheet

✓ 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: 0.137 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.334 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN, thread_length: 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, screw_material: COPPER ALLOY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-156-2920, 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
AN520B10R7
NSN: 5305-00-156-2920
FSC: 5305
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleROUND
head_height0.137 INCHES NOMINAL IN
thread_class2A A
head_diameter0.334 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
thread_length0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
screw_materialCOPPER ALLOY
fastener_length0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.190 INCHES IN
screw_surface_treatmentOXIDE
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
NSN5305-00-156-2920
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN520B10R7 · 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
•
SCREW SURFACE TREATMENT: OXIDE
•
THREAD QUANTITY PER INCH: 32
•
THREAD CLASS: 2A A
•
SCREW MATERIAL: COPPER ALLOY
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD HEIGHT: 0.137 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.334 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SCREW SURFACE TREATMENTOXIDE
THREAD QUANTITY PER INCH32
THREAD CLASS2A A
SCREW MATERIALCOPPER ALLOY
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD HEIGHT0.137 INCHES NOMINAL IN
HEAD DIAMETER0.334 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
FASTENER LENGTH0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
HEAD STYLEROUND
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
HT4036-4-25Same_fsc
same_fsc cross-reference
same_fsc
FFS92ANDTYPE3ANDSTYLE1CInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN520B10R7?
AN520B10R7 is a SCREW,MACHINE.
What parts can replace AN520B10R7?
There are 2 known substitutes for AN520B10R7: HT4036-4-25, FFS92ANDTYPE3ANDSTYLE1C. Substitute compatibility should be verified for your specific system.
What is the NSN for AN520B10R7?
AN520B10R7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-156-2920. 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: September 2026