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S3S18281208 — S3S18281208

✓ Government record, cited
ROLLS-ROYCE AIRLINES · BOLT SCREW
PRODUCT OVERVIEW

S3S18281208: S3S18281208.

The S3S18281208 is a ROLLS-ROYCE AIRLINES industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-01-453-4474, 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
S3S18281208
NSN: 5305-01-453-4474
FSC: 5305 — Screws
CAGE: K0378 — ROLLS-ROYCE PLC DIV DEFENSE (EUROPE) (GBR)
SPECIFICATIONS
Part NumberS3S18281208
ManufacturerROLLS-ROYCE AIRLINES
NSN5305-01-453-4474
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S3S18281208 · ROLLS-ROYCE AIRLINES ⚠ 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
•
HEAD HEIGHT: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
•
THREAD LENGTH: 0.200 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: PAN
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL CORROSION RESISTING
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
FASTENER LENGTH0.250 INCHES NOMINAL IN
THREAD LENGTH0.200 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEPAN
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL CORROSION RESISTING
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
THREAD QUANTITY PER INCH40
SUBSTITUTES & CROSS-REFERENCES 1
ANSI B.18.6.3N04UNCX1/4.T31.SReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 S3S18281208?
S3S18281208 is a S3S18281208 manufactured by ROLLS-ROYCE AIRLINES.
What parts can replace S3S18281208?
There is 1 known substitute for S3S18281208: ANSI B.18.6.3N04UNCX1/4.T31.S. Substitute compatibility should be verified for your specific system.
What is the NSN for S3S18281208?
S3S18281208 is cataloged in the U.S. Government catalog under NSN 5305-01-453-4474. 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.