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Technical Data Sheet
PartsTable / COMPONENT / B1821BH038C075C
B1821BH038C075C ✓ 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 color: YELLOW OR BRONZE OR OLIVE DRAB OVERALL, material: STEEL OR STEEL UNS K04100 OVERALL, hole_type: DRILLED, head_style: HEXAGON, head_height: 0.223 INCHES MINIMUM AND 0.246 INCHES MAXIMUM IN, thread_class: 2A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-390-5203, 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
B1821BH038C075C
NSN: 5305-01-390-5203
FSC: 5305
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
colorYELLOW OR BRONZE OR OLIVE DRAB OVERALL
materialSTEEL OR STEEL UNS K04100 OVERALL
hole_typeDRILLED
head_styleHEXAGON
head_height0.223 INCHES MINIMUM AND 0.246 INCHES MAXIMUM IN
thread_class2A A
hole_diameter0.062 INCHES NOMINAL IN
hole_quantity1
thread_length0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
fastener_length0.750 INCHES NOMINAL IN
hardness_rating33.0 ROCKWELL C MINIMUM OVERALL
thread_directionRIGHT-HAND
NSN5305-01-390-5203
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B1821BH038C075C · 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: 0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
HOLE QUANTITY: 1
•
THREAD DIRECTION: RIGHT-HAND
•
COLOR: YELLOW OR BRONZE OR OLIVE DRAB OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 GR8 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A354 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
•
HARDNESS RATING: 33.0 ROCKWELL C MINIMUM OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
HOLE QUANTITY1
THREAD DIRECTIONRIGHT-HAND
COLORYELLOW OR BRONZE OR OLIVE DRAB OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GR8 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A354 ASSN STD 2ND MATERIAL RESPONSE OVERALL
HOLE CONFIGURATION STYLEHEXAGON FLATS
HARDNESS RATING33.0 ROCKWELL C MINIMUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENTZINC AND CHROMATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
199-110Interchangeable
interchangeable cross-reference
interchangeable
18C516Interchangeable
interchangeable cross-reference
interchangeable
303843Interchangeable
interchangeable cross-reference
interchangeable
15A00406-0000 ITEM NO 40Interchangeable
interchangeable cross-reference
interchangeable
B1821BH038C150NInterchangeable
interchangeable cross-reference
interchangeable
B1821BH063F600NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1821BH038C075C?
B1821BH038C075C is a SCREW,CAP,HEXAGON HEAD.
What parts can replace B1821BH038C075C?
There are 11 known substitutes for B1821BH038C075C: 199-110, 18C516, 303843 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B1821BH038C075C?
B1821BH038C075C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-390-5203. 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