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PartsTable / COMPONENT / MS51028-48
MS51028-48 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL, head_style: HEADLESS (SETSCREW), point_style: FLAT, thread_class: 3A A, thread_length: 0.187 INCHES NOMINAL IN, fastener_length: 0.187 INCHES NOMINAL 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 5305-00-047-3896, 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
MS51028-48
NSN: 5305-00-047-3896
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
head_styleHEADLESS (SETSCREW)
point_styleFLAT
thread_class3A A
thread_length0.187 INCHES NOMINAL IN
fastener_length0.187 INCHES NOMINAL IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
width_across_flats0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.190 INCHES IN
NSN5305-00-047-3896
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51028-48 · 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 DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OR AISI/SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD STYLE: HEADLESS (SETSCREW)
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD CLASS: 3A A
•
MATERIAL: STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
•
SURFACE TREATMENT: PHOSPHATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OR AISI/SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEHEADLESS (SETSCREW)
NOMINAL THREAD DIAMETER0.190 INCHES IN
THREAD SERIES DESIGNATORUNF
THREAD CLASS3A A
MATERIALSTEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD LENGTH0.187 INCHES NOMINAL IN
INTERNAL DRIVE STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
66187-66462Interchangeable
interchangeable cross-reference
interchangeable
10200-3HECVPC33Interchangeable
interchangeable cross-reference
interchangeable
10234Interchangeable
interchangeable cross-reference
interchangeable
1023-LInterchangeable
interchangeable cross-reference
interchangeable
10234-1Interchangeable
interchangeable cross-reference
interchangeable
901E324P9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51028-48?
MS51028-48 is a SETSCREW.
What parts can replace MS51028-48?
There are 15 known substitutes for MS51028-48: 66187-66462, 10200-3HECVPC33, 10234 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51028-48?
MS51028-48 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-047-3896. 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