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PartsTable / COMPONENT / FFS103TYPE3STYLE5
FFS103TYPE3STYLE5 ✓ 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 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL, head_style: HEADLESS (SETSCREW), point_style: HALF DOG, thread_class: 3A A, thread_length: 0.500 INCHES MAXIMUM IN, fastener_length: 0.500 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 5305-00-013-9703, 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
FFS103TYPE3STYLE5
NSN: 5305-00-013-9703
FSC: 5305
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
head_styleHEADLESS (SETSCREW)
point_styleHALF DOG
thread_class3A A
thread_length0.500 INCHES MAXIMUM IN
fastener_length0.500 INCHES NOMINAL IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedCASEHARDENED
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.250 INCHES NOMINAL IN
internal_drive_styleHEXAGON
NSN5305-00-013-9703
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FFS103TYPE3STYLE5 · 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: STEEL OVERALL
•
THREAD CLASS: 3A A
•
WIDTH ACROSS FLATS: 0.125 INCHES NOMINAL IN
•
INTERNAL DRIVE STYLE: HEXAGON
•
NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 5 STYLE
•
HEAD STYLE: HEADLESS (SETSCREW)
•
POINT STYLE: FULL DOG
•
FASTENER LENGTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD CLASS3A A
WIDTH ACROSS FLATS0.125 INCHES NOMINAL IN
INTERNAL DRIVE STYLEHEXAGON
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 5 STYLE
HEAD STYLEHEADLESS (SETSCREW)
POINT STYLEFULL DOG
FASTENER LENGTH0.375 INCHES NOMINAL IN
THREAD QUANTITY PER INCH20
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
139705Interchangeable
interchangeable cross-reference
interchangeable
87526Interchangeable
interchangeable cross-reference
interchangeable
139727Interchangeable
interchangeable cross-reference
interchangeable
FFS103TYPE3STYLE5Interchangeable
interchangeable cross-reference
interchangeable
FF-S-200Interchangeable
interchangeable cross-reference
interchangeable
139749Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFS103TYPE3STYLE5?
FFS103TYPE3STYLE5 is a SETSCREW.
What parts can replace FFS103TYPE3STYLE5?
There are 14 known substitutes for FFS103TYPE3STYLE5: 139705, 87526, 139727 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FFS103TYPE3STYLE5?
FFS103TYPE3STYLE5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-013-9703. 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