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10318166 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

10318166: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEADLESS (SETSCREW), point_style: CONE, thread_class: 3A A, thread_length: 1.000 INCHES NOMINAL IN, fastener_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-498-1007, 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
10318166
NSN: 5305-01-498-1007
FSC: 5305 — Screws
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEADLESS (SETSCREW)
point_styleCONE
thread_class3A A
thread_length1.000 INCHES NOMINAL IN
fastener_length1.000 INCHES NOMINAL IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.250 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.500 INCHES IN
NSN5305-01-498-1007
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 10318166 · 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
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: CONE
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
FASTENER LENGTH1.000 INCHES NOMINAL IN
THREAD LENGTH1.000 INCHES NOMINAL IN
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD DIRECTIONRIGHT-HAND
POINT STYLECONE
SURFACE TREATMENTCADMIUM OVERALL
INTERNAL DRIVE STYLEHEXAGON
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 2
MS51974-152Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
721009665200Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10318166?
10318166 is a SETSCREW.
What parts can replace 10318166?
There are 2 known substitutes for 10318166: MS51974-152, 721009665200. Substitute compatibility should be verified for your specific system.
What is the NSN for 10318166?
10318166 is cataloged in the U.S. Government catalog under NSN 5305-01-498-1007. 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.