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PartsTable / COMPONENT / ST2580-381-4
ST2580-381-4 ✓ 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,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT FILLISTER, head_height: 0.1875 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.375 INCHES NOMINAL IN, thread_length: 0.375 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 5305-01-679-3365, 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
ST2580-381-4
NSN: 5305-01-679-3365
FSC: 5305
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT FILLISTER
head_height0.1875 INCHES NOMINAL IN
thread_class2A A
head_diameter0.375 INCHES NOMINAL IN
thread_length0.375 INCHES NOMINAL IN
fastener_length0.8125 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.125 INCHES NOMINAL IN
internal_drive_styleHEXAGON
end_item_identificationKC-46 TANKER
nominal_thread_diameter10.00 MILLIMETERS MM
NSN5305-01-679-3365
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST2580-381-4 · 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: 24
•
NOMINAL THREAD DIAMETER: 10.00 MILLIMETERS MM
•
HEAD HEIGHT: 0.1875 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
•
WIDTH ACROSS FLATS: 0.125 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
NOMINAL THREAD DIAMETER10.00 MILLIMETERS MM
HEAD HEIGHT0.1875 INCHES NOMINAL IN
THREAD CLASS2A A
WIDTH ACROSS FLATS0.125 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSOCKET SHOULDER SCREW
HEAD DIAMETER0.375 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.8125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
10082452Interchangeable
interchangeable cross-reference
interchangeable
PN14-14RInterchangeable
interchangeable cross-reference
interchangeable
31904Interchangeable
interchangeable cross-reference
interchangeable
41701Interchangeable
interchangeable cross-reference
interchangeable
P26916Interchangeable
interchangeable cross-reference
interchangeable
5234Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST2580-381-4?
ST2580-381-4 is a SCREW,SHOULDER.
What parts can replace ST2580-381-4?
There are 13 known substitutes for ST2580-381-4: 10082452, PN14-14R, 31904 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST2580-381-4?
ST2580-381-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-679-3365. 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