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PartsTable / COMPONENT / 10263A
10263A ✓ 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,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 3140 OVERALL, head_style: HEXAGON, head_height: 0.750 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.719 INCHES MINIMUM IN, shoulder_shape: HEXAGONAL FIRST SHOULDER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-550-2041, 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
10263A
NSN: 5306-00-550-2041
FSC: 5306
CAGE: 13841 — TIFFIN PARTS, L.L.C. DIV SUBSIDIARY OF PETTIBONE CORP. (USA)
SPECIFICATIONS
materialSTEEL COMP 3140 OVERALL
head_styleHEXAGON
head_height0.750 INCHES NOMINAL IN
thread_class2A A
thread_length1.719 INCHES MINIMUM IN
shoulder_shapeHEXAGONAL FIRST SHOULDER
fastener_length7.938 INCHES NOMINAL IN
shoulder_length4.656 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
width_between_flats2.000 INCHES NOMINAL IN
nominal_thread_diameter1.500 INCHES IN
thread_quantity_per_inch12
NSN5306-00-550-2041
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 10263A · 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 DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 2.000 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF
•
NOMINAL THREAD DIAMETER: 1.500 INCHES IN
•
FASTENER LENGTH: 7.938 INCHES NOMINAL IN
•
SHOULDER LENGTH: 4.656 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER WIDTH ACROSS FLATS: 1.744 INCHES MINIMUM AND 1.749 INCHES MAXIMUM FIRST SHOULDER IN
•
MATERIAL: STEEL COMP 3140 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS2.000 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER1.500 INCHES IN
FASTENER LENGTH7.938 INCHES NOMINAL IN
SHOULDER LENGTH4.656 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER WIDTH ACROSS FLATS1.744 INCHES MINIMUM AND 1.749 INCHES MAXIMUM FIRST SHOULDER IN
MATERIALSTEEL COMP 3140 OVERALL
THREAD CLASS2A A
HEAD HEIGHT0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
10263Upgraded Successor
successor cross-reference
successor
426-011-191Upgraded Successor
successor cross-reference
successor
1026-3-05Interchangeable
interchangeable cross-reference
interchangeable
PR5512-5Interchangeable
interchangeable cross-reference
interchangeable
57A5A52-4Interchangeable
interchangeable cross-reference
interchangeable
9M30Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10263A?
10263A is a BOLT,SHOULDER.
What parts can replace 10263A?
There are 11 known substitutes for 10263A: 10263, 426-011-191, 1026-3-05 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10263A?
10263A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-550-2041. 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