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S4618 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S4618: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_type: DRILLED, head_style: FLAT CHAMFER, head_height: 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN, point_style: FLAT, thread_class: 2A A. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-754-4328, 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
S4618
NSN: 5305-00-754-4328
FSC: 5305 — Screws
CAGE: 26233 — NYLOK LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_typeDRILLED
head_styleFLAT CHAMFER
head_height0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
point_styleFLAT
thread_class2A A
head_diameter0.136 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
hole_diameter0.037 INCHES NOMINAL IN
hole_quantity2
thread_length0.266 INCHES MAXIMUM IN
fastener_length0.266 INCHES NOMINAL IN
locking_featurePELLET THREADS
NSN5305-00-754-4328
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S4618 · 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: 0.062 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.266 INCHES NOMINAL IN
•
THREAD LENGTH: 0.266 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: ROUND
•
NOMINAL THREAD DIAMETER: 0.086 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.062 INCHES NOMINAL IN
HEAD HEIGHT0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
FASTENER LENGTH0.266 INCHES NOMINAL IN
THREAD LENGTH0.266 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEROUND
NOMINAL THREAD DIAMETER0.086 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
LOCKING FEATUREPELLET THREADS
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 2
US4618Reference document
Same NSN cross-reference
Reference document — Secondary reference
1312374-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S4618?
S4618 is a SETSCREW.
What parts can replace S4618?
There are 2 known substitutes for S4618: US4618, 1312374-1. Substitute compatibility should be verified for your specific system.
What is the NSN for S4618?
S4618 is cataloged in the U.S. Government catalog under NSN 5305-00-754-4328. 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.