PartsTable
Technical Data Sheet
MS51023-103 ✓ 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: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, fastener_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, locking_feature: PATCH OR PELLET OR STRIP THREADS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-814-7763, 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
MS51023-103
NSN: 5305-00-814-7763
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
head_styleHEADLESS (SETSCREW)
point_styleCUP
thread_class3A A
thread_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
fastener_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
locking_featurePATCH OR PELLET OR STRIP THREADS
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.094 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
NSN5305-00-814-7763
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51023-103 · 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
INTERNAL DRIVE STYLE: HEXAGON
WIDTH ACROSS FLATS: 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
THREAD SERIES DESIGNATOR: UNF
LOCKING FEATURE: PELLET OR STRIP THREADS
POINT STYLE: FLAT
MATERIAL: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
THREAD SERIES DESIGNATORUNF
LOCKING FEATUREPELLET OR STRIP THREADS
POINT STYLEFLAT
MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
461-04139Interchangeable
interchangeable cross-reference
interchangeable
MS51023-103Interchangeable
interchangeable cross-reference
interchangeable
LK1081C3A4Interchangeable
Same NIIN cross-reference
interchangeable
NAS1081C3D4Interchangeable
Same NIIN cross-reference
interchangeable
FF-S-200Interchangeable
Same NIIN cross-reference
interchangeable
NAS1081C3D4LInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51023-103?
MS51023-103 is a SETSCREW.
What parts can replace MS51023-103?
There are 6 known substitutes for MS51023-103: 461-04139, MS51023-103, LK1081C3A4 and 3 more. Substitute compatibility should be verified for your specific system.
Is MS51023-103 still available?
MS51023-103 is currently cancelled.
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