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Technical Data Sheet
PartsTable / COMPONENT / 4MB976
4MB976 ✓ 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 head_style: HEXAGON, thread_class: 2A A, thread_direction: RIGHT-HAND, end_item_identification: 2320-01-465-2174, nominal_thread_diameter: 0.250 INCHES IN, thread_quantity_per_inch: 20. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-492-5566, 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
4MB976
NSN: 5305-01-492-5566
FSC: 5305
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
head_styleHEXAGON
thread_class2A A
thread_directionRIGHT-HAND
end_item_identification2320-01-465-2174
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-492-5566
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4MB976 · 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 SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HEAD STYLE: HEXAGON
•
THREAD CLASS: 2A A
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
END ITEM IDENTIFICATION2320-01-465-2174
HEAD STYLEHEXAGON
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
41163Interchangeable
interchangeable cross-reference
interchangeable
101350Interchangeable
interchangeable cross-reference
interchangeable
3-102-60363Interchangeable
interchangeable cross-reference
interchangeable
B6350-116Interchangeable
interchangeable cross-reference
interchangeable
063-727Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4MB976?
4MB976 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 4MB976?
There are 5 known substitutes for 4MB976: 41163, 101350, 3-102-60363 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4MB976?
4MB976 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-492-5566. 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