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Technical Data Sheet
PartsTable / COMPONENT / B1821BH088F250N
B1821BH088F250N ✓ 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: 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 2.000 INCHES MINIMUM AND 2.188 INCHES MAXIMUM IN, fastener_length: 2.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-022-3843, 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
B1821BH088F250N
NSN: 5305-00-022-3843
FSC: 5305
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
thread_class2A A
thread_length2.000 INCHES MINIMUM AND 2.188 INCHES MAXIMUM IN
fastener_length2.500 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_flats1.285 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
end_item_identificationMRAP BUFFALO MK2A2
nominal_thread_diameter0.875 INCHES IN
NSN5305-00-022-3843
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B1821BH088F250N · 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
•
NOMINAL THREAD DIAMETER: 0.875 INCHES IN
•
MINIMUM TENSILE STRENGTH: 150000 POUNDS PER SQUARE INCH LBS
•
THREAD QUANTITY PER INCH: 14
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD LENGTH: 2.000 INCHES MINIMUM AND 2.188 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.875 INCHES IN
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
THREAD QUANTITY PER INCH14
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD LENGTH2.000 INCHES MINIMUM AND 2.188 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
ASME B18.2.1Interchangeable
Same NIIN cross-reference
interchangeable
8438865Interchangeable
Same NIIN cross-reference
interchangeable
5305000223843Interchangeable
Same NIIN cross-reference
interchangeable
MS90726-211Interchangeable
Same NIIN cross-reference
interchangeable
MS90727-211Interchangeable
Same NIIN cross-reference
interchangeable
FF-S-85Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1821BH088F250N?
B1821BH088F250N is a SCREW,CAP,HEXAGON HEAD.
What parts can replace B1821BH088F250N?
There are 6 known substitutes for B1821BH088F250N: ASME B18.2.1, 8438865, 5305000223843 and 3 more. Substitute compatibility should be verified for your specific system.
Is B1821BH088F250N still available?
B1821BH088F250N 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: July 2026