PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 85-11-580-16
85-11-580-16 ✓ 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 STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.562 INCHES NOMINAL IN, material: STEEL OVERALL, drive_type: SLOTTED, grip_length: 0.840 INCHES NOMINAL IN, shank_neck_length: 0.685 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-559-5450, 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
85-11-580-16
NSN: 5325-00-559-5450
FSC: 5325
CAGE: 94222 — SOUTHCO INC (USA)
SPECIFICATIONS
diameter0.562 INCHES NOMINAL IN
materialSTEEL OVERALL
drive_typeSLOTTED
grip_length0.840 INCHES NOMINAL IN
shank_neck_length0.685 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.290 INCHES NOMINAL IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.570 INCHES MINIMUM AND 0.589 INCHES MAXIMUM IN
NSN5325-00-559-5450
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 85-11-580-16 · 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
•
GRIP LENGTH: 0.840 INCHES NOMINAL IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.570 INCHES MINIMUM AND 0.589 INCHES MAXIMUM IN
•
STUD SHANK MAJOR DIAMETER: 0.290 INCHES NOMINAL IN
•
SHANK NECK LENGTH: 0.685 INCHES NOMINAL IN
•
DRIVE TYPE: SLOTTED
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
GRIP LENGTH0.840 INCHES NOMINAL IN
MATERIAL ACCOMMODATED THICKNESS0.570 INCHES MINIMUM AND 0.589 INCHES MAXIMUM IN
STUD SHANK MAJOR DIAMETER0.290 INCHES NOMINAL IN
SHANK NECK LENGTH0.685 INCHES NOMINAL IN
DRIVE TYPESLOTTED
TURNLOCK STUD SHANK STYLESTUD SHANK
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
DIAMETER0.562 INCHES NOMINAL IN
TURNLOCK STUD HEAD STYLEFILLISTER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
D2690PBInterchangeable
interchangeable cross-reference
interchangeable
50580Interchangeable
interchangeable cross-reference
interchangeable
8851571Interchangeable
interchangeable cross-reference
interchangeable
A31-179Interchangeable
interchangeable cross-reference
interchangeable
MB352-4AInterchangeable
interchangeable cross-reference
interchangeable
7B280Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 85-11-580-16?
85-11-580-16 is a STUD,TURNLOCK FASTENER.
What parts can replace 85-11-580-16?
There are 8 known substitutes for 85-11-580-16: D2690PB, 50580, 8851571 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 85-11-580-16?
85-11-580-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-559-5450. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026