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PartsTable / COMPONENT / ST26D30C6-24PBF
ST26D30C6-24PBF ✓ 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 BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: BEVEL-CONICAL, head_height: 0.375 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN, thread_length: 0.703 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 5306-01-333-3553, 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
ST26D30C6-24PBF
NSN: 5306-01-333-3553
FSC: 5306
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleBEVEL-CONICAL
head_height0.375 INCHES NOMINAL IN
thread_class3A A
head_diameter0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
thread_length0.703 INCHES NOMINAL IN
fastener_length2.188 INCHES MINIMUM AND 2.218 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.375 INCHES IN
NSN5306-01-333-3553
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST26D30C6-24PBF · 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
•
THREAD LENGTH: 0.703 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.188 INCHES MINIMUM AND 2.218 INCHES MAXIMUM IN
•
HEAD STYLE: BEVEL-CONICAL
•
THREAD SERIES DESIGNATOR: UNF
•
HEAD DIAMETER: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
THREAD LENGTH0.703 INCHES NOMINAL IN
FASTENER LENGTH2.188 INCHES MINIMUM AND 2.218 INCHES MAXIMUM IN
HEAD STYLEBEVEL-CONICAL
THREAD SERIES DESIGNATORUNF
HEAD DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
INTERNAL DRIVE STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
SC12-0Interchangeable
interchangeable cross-reference
interchangeable
PPP-C-795 CL1Interchangeable
interchangeable cross-reference
interchangeable
201Interchangeable
interchangeable cross-reference
interchangeable
A-A-549Interchangeable
interchangeable cross-reference
interchangeable
33092Interchangeable
interchangeable cross-reference
interchangeable
B220E#Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST26D30C6-24PBF?
ST26D30C6-24PBF is a BOLT,INTERNAL WRENCHING.
What parts can replace ST26D30C6-24PBF?
There are 10 known substitutes for ST26D30C6-24PBF: SC12-0, PPP-C-795 CL1, 201 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST26D30C6-24PBF?
ST26D30C6-24PBF is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-333-3553. 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