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Technical Data Sheet
PartsTable / COMPONENT / MS18063-71
MS18063-71 ✓ 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: CUP, thread_class: 3A A, thread_length: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN, fastener_length: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-465-5544, 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
MS18063-71
NSN: 5305-00-465-5544
FSC: 5305
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
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_styleCUP
thread_class3A A
thread_length0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
fastener_length0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
locking_featurePATCH OR PELLET OR STRIP THREADS
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-00-465-5544
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS18063-71 · 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 LENGTH: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
WIDTH ACROSS FLATS: 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
LOCKING FEATURE: PATCH OR PELLET OR STRIP THREADS
•
THREAD QUANTITY PER INCH: 24
•
INTERNAL DRIVE STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
MATERIALSTEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
WIDTH ACROSS FLATS0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
THREAD QUANTITY PER INCH24
INTERNAL DRIVE STYLEHEXAGON
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MIL-F-18240EInterchangeable
interchangeable cross-reference
interchangeable
NK515-8R16Interchangeable
interchangeable cross-reference
interchangeable
LL35275-218Interchangeable
interchangeable cross-reference
interchangeable
FFS86Interchangeable
interchangeable cross-reference
interchangeable
MS21262-60Interchangeable
interchangeable cross-reference
interchangeable
FF-S-86EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS18063-71?
MS18063-71 is a SETSCREW.
What parts can replace MS18063-71?
There are 17 known substitutes for MS18063-71: MIL-F-18240E, NK515-8R16, LL35275-218 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS18063-71?
MS18063-71 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-465-5544. 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