PartsTable
Technical Data Sheet
B18231B08050N ✓ 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 PROPERTY CLASS 10.9 OVERALL, head_style: HEXAGON, grip_length: 21.80 MILLIMETERS MINIMUM AND 28.00 MILLIMETERS MAXIMUM MM, head_height: 5.1 MILLIMETERS MINIMUM AND 5.5 MILLIMETERS MAXIMUM MM, thread_length: 21.5 MILLIMETERS MINIMUM AND 28.7 MILLIMETERS MAXIMUM MM, fastener_length: 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-423-2036, 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
B18231B08050N
NSN: 5306-01-423-2036
FSC: 5306
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 10.9 OVERALL
head_styleHEXAGON
grip_length21.80 MILLIMETERS MINIMUM AND 28.00 MILLIMETERS MAXIMUM MM
head_height5.1 MILLIMETERS MINIMUM AND 5.5 MILLIMETERS MAXIMUM MM
thread_length21.5 MILLIMETERS MINIMUM AND 28.7 MILLIMETERS MAXIMUM MM
fastener_length49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
hardness_rating33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats12.7 MILLIMETERS MINIMUM AND 13.0 MILLIMETERS MAXIMUM MM
minimum_yield_strength940 MEGAPASCALS
NSN5306-01-423-2036
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B18231B08050N · 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 LENGTH: 21.5 MILLIMETERS MINIMUM AND 28.7 MILLIMETERS MAXIMUM MM
THREAD PITCH IN MILLIMETERS: 1.25
GRIP LENGTH: 21.80 MILLIMETERS MINIMUM AND 28.00 MILLIMETERS MAXIMUM MM
MINIMUM YIELD STRENGTH: 940 MEGAPASCALS
EXTERNAL THREAD TOLERANCE CLASS: 6G G
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS MM
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH21.5 MILLIMETERS MINIMUM AND 28.7 MILLIMETERS MAXIMUM MM
THREAD PITCH IN MILLIMETERS1.25
GRIP LENGTH21.80 MILLIMETERS MINIMUM AND 28.00 MILLIMETERS MAXIMUM MM
MINIMUM YIELD STRENGTH940 MEGAPASCALS
EXTERNAL THREAD TOLERANCE CLASS6G G
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
NOMINAL THREAD DIAMETER8.0 MILLIMETERS MM
FEATURES PROVIDEDFINISHED HEAD
FASTENER LENGTH49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
ASME B18.2.3.1MInterchangeable
interchangeable cross-reference
interchangeable
AES07M08B070CG9A81Interchangeable
interchangeable cross-reference
interchangeable
B18231B08070NInterchangeable
interchangeable cross-reference
interchangeable
B18231B05016NInterchangeable
interchangeable cross-reference
interchangeable
AS02-0660Interchangeable
interchangeable cross-reference
interchangeable
B18231B08060NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B18231B08050N?
B18231B08050N is a BOLT,MACHINE.
What parts can replace B18231B08050N?
There are 24 known substitutes for B18231B08050N: ASME B18.2.3.1M, AES07M08B070CG9A81, B18231B08070N and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B18231B08050N?
B18231B08050N is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-423-2036. This indicates validated use in U.S. government and defense supply chains.
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