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Technical Data Sheet
PartsTable / COMPONENT / S104A
S104A ✓ 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,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.500 INCHES MAXIMUM IN, fastener_length: 1.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-727-5677, 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
S104A
NSN: 5305-00-727-5677
FSC: 5305
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
thread_class2A A
thread_length1.500 INCHES MAXIMUM IN
fastener_length1.500 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_between_flats0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
minimum_yield_strength85000 POUNDS PER SQUARE INCH LBS
nominal_thread_diameter0.625 INCHES IN
NSN5305-00-727-5677
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S104A · 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: 2A A
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
MINIMUM YIELD STRENGTH: 85000 POUNDS PER SQUARE INCH LBS
•
HEAD STYLE: HEXAGON
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
WIDTH BETWEEN FLATS: 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.625 INCHES IN
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH LBS
HEAD STYLEHEXAGON
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNF
WIDTH BETWEEN FLATS0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD QUANTITY PER INCH18
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
HE260Interchangeable
interchangeable cross-reference
interchangeable
71380Interchangeable
interchangeable cross-reference
interchangeable
8002738Interchangeable
interchangeable cross-reference
interchangeable
251596Interchangeable
interchangeable cross-reference
interchangeable
223809Interchangeable
interchangeable cross-reference
interchangeable
MS90727-162Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S104A?
S104A is a SCREW,CAP,HEXAGON HEAD.
What parts can replace S104A?
There are 15 known substitutes for S104A: HE260, 71380, 8002738 and 12 more. Substitute compatibility should be verified for your specific system.
Is S104A still available?
S104A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026