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Technical Data Sheet
PartsTable / COMPONENT / 520-0011
520-0011 ✓ 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,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, thread_class: 2A NUT THREAD A, thread_length: 0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM STUD THREAD IN, overall_length: 1.438 INCHES NOMINAL IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND STUD THREAD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-358-3557, 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
520-0011
NSN: 5307-00-358-3557
FSC: 5307
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
thread_class2A NUT THREAD A
thread_length0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM STUD THREAD IN
overall_length1.438 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM OR ZINC OVERALL
nominal_thread_size0.312 INCHES STUD THREAD IN
thread_quantity_per_inch18 STUD THREAD
thread_series_designatorUNF NUT THREAD
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-00-358-3557
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 520-0011 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD SERIES DESIGNATOR: UNF NUT THREAD
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD SIZE: 0.312 INCHES STUD THREAD IN
•
THREAD LENGTH: 0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM STUD THREAD IN
•
THREAD CLASS: 2A NUT THREAD A
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
THREAD SERIES DESIGNATORUNF NUT THREAD
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
NOMINAL THREAD SIZE0.312 INCHES STUD THREAD IN
THREAD LENGTH0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM STUD THREAD IN
THREAD CLASS2A NUT THREAD A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD THREAD
THREAD DIRECTIONRIGHT-HAND STUD THREAD
MATERIALSTEEL COMP 4140
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
020.049Interchangeable
interchangeable cross-reference
interchangeable
F-51-BInterchangeable
interchangeable cross-reference
interchangeable
20049Interchangeable
interchangeable cross-reference
interchangeable
020049Interchangeable
interchangeable cross-reference
interchangeable
520A11Interchangeable
Same NIIN cross-reference
interchangeable
5307003583557Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 520-0011?
520-0011 is a STUD,PLAIN.
What parts can replace 520-0011?
There are 6 known substitutes for 520-0011: 020.049, F-51-B, 20049 and 3 more. Substitute compatibility should be verified for your specific system.
Is 520-0011 still available?
520-0011 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026