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PartsTable / COMPONENT / 4-40X1-4TYPE S
4-40X1-4TYPE S ✓ 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,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.055 INCHES NOMINAL IN, fastener_length: 0.250 INCHES NOMINAL IN, surface_treatment: CHROMIUM OVERALL, width_between_flats: 0.184 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 5305-00-885-7075, 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
4-40X1-4TYPE S
NSN: 5305-00-885-7075
FSC: 5305
CAGE: 97539 — APM HEXSEAL CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.055 INCHES NOMINAL IN
fastener_length0.250 INCHES NOMINAL IN
surface_treatmentCHROMIUM OVERALL
width_between_flats0.184 INCHES NOMINAL IN
internal_drive_styleSLOT
nonmachine_thread_styleGIMLET POINT (TYPE A, AB OR BA)
nonmachine_nominal_thread_diameter0.112 INCHES IN
NSN5305-00-885-7075
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4-40X1-4TYPE S · 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
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
•
NONMACHINE THREAD STYLE: GIMLET POINT (TYPE A, AB OR BA)
•
HEAD STYLE: HEXAGON
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
WIDTH BETWEEN FLATS: 0.184 INCHES NOMINAL IN
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD HEIGHT: 0.055 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH0.250 INCHES NOMINAL IN
NONMACHINE THREAD STYLEGIMLET POINT (TYPE A, AB OR BA)
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
SURFACE TREATMENTCHROMIUM OVERALL
WIDTH BETWEEN FLATS0.184 INCHES NOMINAL IN
NONMACHINE NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD HEIGHT0.055 INCHES NOMINAL IN
INTERNAL DRIVE STYLESLOT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
4-40 X 1/4Interchangeable
interchangeable cross-reference
interchangeable
FF-S-92B TY III ST 9CInterchangeable
interchangeable cross-reference
interchangeable
8734676-1Interchangeable
interchangeable cross-reference
interchangeable
4-40X1-4RDHDInterchangeable
interchangeable cross-reference
interchangeable
AN515-4-4Interchangeable
interchangeable cross-reference
interchangeable
FFS92ANDTYPE1ANDSTYLE1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-40X1-4TYPE S?
4-40X1-4TYPE S is a SCREW,TAPPING.
What parts can replace 4-40X1-4TYPE S?
There are 14 known substitutes for 4-40X1-4TYPE S: 4-40 X 1/4, FF-S-92B TY III ST 9C, 8734676-1 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-40X1-4TYPE S?
4-40X1-4TYPE S is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-885-7075. 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