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B18231B10020N — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

B18231B10020N: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 10.9 OVERALL, head_style: HEXAGON, head_height: 6.17 MILLIMETERS MINIMUM AND 6.63 MILLIMETERS MAXIMUM MM, thread_length: 20.0 MILLIMETERS NOMINAL MM, fastener_length: 20.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-423-5384, 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
B18231B10020N
NSN: 5305-01-423-5384
FSC: 5305 — Screws
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 10.9 OVERALL
head_styleHEXAGON
head_height6.17 MILLIMETERS MINIMUM AND 6.63 MILLIMETERS MAXIMUM MM
thread_length20.0 MILLIMETERS NOMINAL MM
fastener_length20.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats15.73 MILLIMETERS MINIMUM AND 16.00 MILLIMETERS MAXIMUM MM
end_item_identificationMEDIUM MINE PROTECTED VEHICLE - MMPV
nominal_thread_diameter10.0 MILLIMETERS MM
thread_series_designatorM
thread_pitch_in_millimeters1.5
NSN5305-01-423-5384
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B18231B10020N · 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
•
HEAD HEIGHT: 6.17 MILLIMETERS MINIMUM AND 6.63 MILLIMETERS MAXIMUM MM
•
EXTERNAL THREAD TOLERANCE CLASS: 6H
•
FASTENER LENGTH: 20.0 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325 TY2, CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD PITCH IN MILLIMETERS: 1.5
•
THREAD LENGTH: 20.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 10.0 MILLIMETERS MM
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT6.17 MILLIMETERS MINIMUM AND 6.63 MILLIMETERS MAXIMUM MM
EXTERNAL THREAD TOLERANCE CLASS6H
FASTENER LENGTH20.0 MILLIMETERS NOMINAL MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325 TY2, CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD PITCH IN MILLIMETERS1.5
THREAD LENGTH20.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER10.0 MILLIMETERS MM
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS15.73 MILLIMETERS MINIMUM AND 16.00 MILLIMETERS MAXIMUM MM
SUBSTITUTES & CROSS-REFERENCES 1
B18.2.31MReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B18231B10020N?
B18231B10020N is a SCREW,CAP,HEXAGON HEAD.
What parts can replace B18231B10020N?
There is 1 known substitute for B18231B10020N: B18.2.31M. Substitute compatibility should be verified for your specific system.
What is the NSN for B18231B10020N?
B18231B10020N is cataloged in the U.S. Government catalog under NSN 5305-01-423-5384. This indicates validated use in U.S. government and defense supply chains.
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