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Technical Data Sheet
PartsTable / COMPONENT / 50028718
50028718 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 0.188 INCHES NOMINAL IN, head_height: 0.188 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.438 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 5306-00-263-4037, 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
50028718
NSN: 5306-00-263-4037
FSC: 5306
CAGE: U07Z1 — BAES GCS TERRIER SSC 3 PROJECT (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length0.188 INCHES NOMINAL IN
head_height0.188 INCHES NOMINAL IN
thread_class2A A
thread_length0.438 INCHES MAXIMUM IN
fastener_length0.625 INCHES NOMINAL IN
hardness_rating30.0 ROCKWELL C NOMINAL OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.438 INCHES NOMINAL IN
minimum_yield_strength145000 POUNDS PER SQUARE INCH LBS
NSN5306-00-263-4037
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 50028718 · 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
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
MINIMUM YIELD STRENGTH: 145000 POUNDS PER SQUARE INCH LBS
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HARDNESS RATING: 30.0 ROCKWELL C NOMINAL OVERALL
•
FEATURES PROVIDED: FINISHED HEAD
•
MATERIAL: STEEL OVERALL
•
WIDTH BETWEEN FLATS: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.250 INCHES IN
MINIMUM YIELD STRENGTH145000 POUNDS PER SQUARE INCH LBS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING30.0 ROCKWELL C NOMINAL OVERALL
FEATURES PROVIDEDFINISHED HEAD
MATERIALSTEEL OVERALL
WIDTH BETWEEN FLATS0.438 INCHES NOMINAL IN
THREAD CLASS2A A
HEAD STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
B1821BH025C063NInterchangeable
interchangeable cross-reference
interchangeable
816237Interchangeable
interchangeable cross-reference
interchangeable
1&4&20X5&8SCPInterchangeable
interchangeable cross-reference
interchangeable
2A762Interchangeable
Same NIIN cross-reference
interchangeable
2A0762Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50028718?
50028718 is a BOLT,MACHINE.
What parts can replace 50028718?
There are 5 known substitutes for 50028718: B1821BH025C063N, 816237, 1&4&20X5&8SCP and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 50028718?
50028718 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-263-4037. 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