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S900073-8 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S900073-8: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.112 INCHES NOMINAL IN, spline_width: 0.022 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.183 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-055-7108, 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
S900073-8
NSN: 5305-00-055-7108
FSC: 5305 — Screws
CAGE: 05257 — GENERAL DYNAMICS LAND SYSTEMS - CANADACORPORATION DIV GENERAL DYNAMICS MISSION SYSTEMS (CAN)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.112 INCHES NOMINAL IN
spline_width0.022 INCHES NOMINAL IN
thread_class3A A
head_diameter0.183 INCHES NOMINAL IN
thread_length0.138 INCHES NOMINAL IN
fastener_length0.250 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
internal_drive_styleSIX SPLINE
NSN5305-00-055-7108
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S900073-8 · 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
•
SPLINE MINOR DIAMETER: 0.082 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.112 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
•
SPLINE WIDTH: 0.022 INCHES NOMINAL IN
•
THREAD LENGTH: 0.138 INCHES NOMINAL IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
•
SPLINE MAJOR DIAMETER: 0.098 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
TECHNICAL CHARACTERISTICS
SPLINE MINOR DIAMETER0.082 INCHES NOMINAL IN
HEAD HEIGHT0.112 INCHES NOMINAL IN
FASTENER LENGTH0.250 INCHES NOMINAL IN
SPLINE WIDTH0.022 INCHES NOMINAL IN
THREAD LENGTH0.138 INCHES NOMINAL IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
SPLINE MAJOR DIAMETER0.098 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 1
B2A440-4C3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S900073-8?
S900073-8 is a SCREW,CAP,SOCKET HEAD.
What parts can replace S900073-8?
There is 1 known substitute for S900073-8: B2A440-4C3. Substitute compatibility should be verified for your specific system.
What is the NSN for S900073-8?
S900073-8 is cataloged in the U.S. Government catalog under NSN 5305-00-055-7108. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.