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Technical Data Sheet
PartsTable / COMPONENT / 5121263
5121263 ✓ 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 OVERALL, head_style: DOUBLE HEXAGON EXTENDED WASHER, head_height: 0.620 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.200 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN, fastener_length: 6.000 INCHES MINIMUM AND 6.240 INCHES MAXIMUM 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 5306-00-792-8248, 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
5121263
NSN: 5306-00-792-8248
FSC: 5306
CAGE: F0742 — DELPHI FRANCE SAS (FRA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHER
head_height0.620 INCHES NOMINAL IN
thread_class3A A
thread_length0.200 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
fastener_length6.000 INCHES MINIMUM AND 6.240 INCHES MAXIMUM IN
width_between_flats0.706 INCHES MINIMUM AND 0.724 INCHES MAXIMUM IN
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch11
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
extended_washer_thickness0.220 INCHES NOMINAL IN
NSN5306-00-792-8248
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5121263 · 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: STEEL OVERALL
•
FASTENER LENGTH: 6.000 INCHES MINIMUM AND 6.240 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
THREAD LENGTH: 0.200 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
•
THREAD CLASS: 3A A
•
EXTENDED WASHER THICKNESS: 0.220 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 11
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
FASTENER LENGTH6.000 INCHES MINIMUM AND 6.240 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
THREAD LENGTH0.200 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
THREAD CLASS3A A
EXTENDED WASHER THICKNESS0.220 INCHES NOMINAL IN
THREAD QUANTITY PER INCH11
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS0.706 INCHES MINIMUM AND 0.724 INCHES MAXIMUM IN
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
52148Interchangeable
interchangeable cross-reference
interchangeable
DN52148Interchangeable
interchangeable cross-reference
interchangeable
33052Interchangeable
interchangeable cross-reference
interchangeable
SMB157041Interchangeable
interchangeable cross-reference
interchangeable
151Interchangeable
interchangeable cross-reference
interchangeable
5651803Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5121263?
5121263 is a BOLT,SHOULDER.
What parts can replace 5121263?
There are 14 known substitutes for 5121263: 52148, DN52148, 33052 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5121263?
5121263 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-792-8248. 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