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Technical Data Sheet
PartsTable / COMPONENT / MB156-6-18F
MB156-6-18F ✓ 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,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: SPLINE EXTENDED WASHER, grip_length: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN, head_height: 0.263 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-157-3372, 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
MB156-6-18F
NSN: 5306-01-157-3372
FSC: 5306
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleSPLINE EXTENDED WASHER
grip_length1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
head_height0.263 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
thread_length0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN
fastener_length1.724 INCHES MINIMUM AND 1.754 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentALUMINUM AND CHROMATE OVERALL
head_minor_diameter0.424 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
NSN5306-01-157-3372
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MB156-6-18F · 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
•
GRIP LENGTH: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ALUMINUM AND CHROMATE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD QUANTITY PER INCH: 24
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL: STEEL COMP XM-13 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-83488,TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF)
TECHNICAL CHARACTERISTICS (FLIS)
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
SURFACE TREATMENTALUMINUM AND CHROMATE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD QUANTITY PER INCH24
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-83488,TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
HEAD HEIGHT0.263 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN
HEAD MINOR DIAMETER0.424 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
10-1161PC28Interchangeable
interchangeable cross-reference
interchangeable
10-1160--28Interchangeable
interchangeable cross-reference
interchangeable
10-1160PC28Interchangeable
interchangeable cross-reference
interchangeable
VS3190-6-18FInterchangeable
Same NIIN cross-reference
interchangeable
S343-6-18FInterchangeable
Same NIIN cross-reference
interchangeable
MB156-6-18BVInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MB156-6-18F?
MB156-6-18F is a BOLT,SHEAR.
What parts can replace MB156-6-18F?
There are 9 known substitutes for MB156-6-18F: 10-1161PC28, 10-1160--28, 10-1160PC28 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MB156-6-18F?
MB156-6-18F is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-157-3372. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026