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Technical Data Sheet
PartsTable / COMPONENT / MS21342-202
MS21342-202 ✓ 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 head_style: HEADLESS (SETSCREW), point_style: FLAT, spline_width: 0.010 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN, fastener_length: 0.084 INCHES MINIMUM AND 0.104 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 5305-00-395-4184, 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
MS21342-202
NSN: 5305-00-395-4184
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
head_styleHEADLESS (SETSCREW)
point_styleFLAT
spline_width0.010 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
thread_class3A A
thread_length0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
fastener_length0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
internal_drive_styleSIX SPLINE
spline_major_diameter0.049 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
NSN5305-00-395-4184
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS21342-202 · 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
•
POINT STYLE: FLAT
•
SPLINE WIDTH: 0.010 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
•
INTERNAL DRIVE STYLE: SIX SPLINE
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SPLINE MAJOR DIAMETER: 0.049 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
POINT STYLEFLAT
SPLINE WIDTH0.010 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
INTERNAL DRIVE STYLESIX SPLINE
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SPLINE MAJOR DIAMETER0.049 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
THREAD LENGTH0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 STYLE
NOMINAL THREAD DIAMETER0.086 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
FF-S-200BInterchangeable
interchangeable cross-reference
interchangeable
FF-S-103Interchangeable
interchangeable cross-reference
interchangeable
FF-S-200Interchangeable
interchangeable cross-reference
interchangeable
231249Interchangeable
interchangeable cross-reference
interchangeable
FF-S-200B TYPE I STYLE 4Interchangeable
interchangeable cross-reference
interchangeable
AN565D10H6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21342-202?
MS21342-202 is a SETSCREW.
What parts can replace MS21342-202?
There are 17 known substitutes for MS21342-202: FF-S-200B, FF-S-103, FF-S-200 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21342-202?
MS21342-202 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-395-4184. 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