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B1821BH063C1 — Technical Data Sheet

✓ 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 SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.000 INCHES MAXIMUM IN, fastener_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 5305-00-724-7218, 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
B1821BH063C1
NSN: 5305-00-724-7218
FSC: 5305
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
thread_class2A A
thread_length1.000 INCHES MAXIMUM IN
fastener_length1.000 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
end_item_identificationMRAP BUFFALO MK2A2; LOGISTICS SUPPORT VESSEL
nominal_thread_diameter0.625 INCHES IN
NSN5305-00-724-7218
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B1821BH063C1 · 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 CLASS: 2A A
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAEJ429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR STMA354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
MINIMUM TENSILE STRENGTH: 150000 POUNDS PER SQUARE INCH LBS
•
THREAD QUANTITY PER INCH: 11
•
MINIMUM YIELD STRENGTH: 120000 POUNDS PER SQUARE INCH LBS
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
THREAD CLASS2A A
MATERIAL DOCUMENT AND CLASSIFICATIONSAEJ429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR STMA354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2; LOGISTICS SUPPORT VESSEL
NOMINAL THREAD DIAMETER0.625 INCHES IN
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
THREAD QUANTITY PER INCH11
MINIMUM YIELD STRENGTH120000 POUNDS PER SQUARE INCH LBS
SURFACE TREATMENTZINC AND CHROMATE OVERALL
HEAD STYLEHEXAGON
THREAD LENGTH1.000 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
19340-3AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
243273InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4010-304-022InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
S1624InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F212InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
BNFS3-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1821BH063C1?
B1821BH063C1 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace B1821BH063C1?
There are 26 known substitutes for B1821BH063C1: 19340-3A, 243273, 4010-304-022 and 23 more. Substitute compatibility should be verified for your specific system.
Is B1821BH063C1 still available?
B1821BH063C1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026