PartsTable
Technical Data Sheet
20X55 ✓ 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,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, thread_length: 1.062 INCHES NOMINAL STUD THREAD IN, overall_length: 3.469 INCHES NOMINAL IN, hardness_rating: 18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM, shoulder_length: 0.188 INCHES NOMINAL IN, style_designator: SHOULDERED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-208-8744, 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
20X55
NSN: 5307-00-208-8744
FSC: 5307
CAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
materialSTEEL
thread_length1.062 INCHES NOMINAL STUD THREAD IN
overall_length3.469 INCHES NOMINAL IN
hardness_rating18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM
shoulder_length0.188 INCHES NOMINAL IN
style_designatorSHOULDERED
thread_directionRIGHT-HAND STUD THREAD
shoulder_diameter1.125 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES NUT THREAD IN
nut_end_shank_length0.875 INCHES NOMINAL IN
distance_across_flats0.938 INCHES NOMINAL IN
stud_end_shank_length0.115 INCHES NOMINAL IN
NSN5307-00-208-8744
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 20X55 · 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: 16 NUT THREAD
THREAD DIRECTION: RIGHT-HAND NUT THREAD
THREAD CLASS: 3A STUD THREAD A
NOMINAL THREAD SIZE: 0.750 INCHES STUD THREAD IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH16 NUT THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD CLASS3A STUD THREAD A
THREAD QUANTITY PER INCH16 STUD THREAD
NOMINAL THREAD SIZE0.750 INCHES STUD THREAD IN
NOMINAL THREAD SIZE0.750 INCHES NUT THREAD IN
THREAD CLASS3A NUT THREAD A
THREAD LENGTH1.156 INCHES MINIMUM NUT THREAD IN
THREAD SERIES DESIGNATORUNF STUD THREAD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
12676Interchangeable
interchangeable cross-reference
interchangeable
SFP156Interchangeable
interchangeable cross-reference
interchangeable
13097EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20X55?
20X55 is a STUD,SHOULDERED.
What parts can replace 20X55?
There are 3 known substitutes for 20X55: 12676, SFP156, 13097E. Substitute compatibility should be verified for your specific system.
What is the NSN for 20X55?
20X55 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-208-8744. This indicates validated use in U.S. government and defense supply chains.
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