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Technical Data Sheet

LSG4M18W3/8H — RUBBER ROUND SECTION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

LSG4M18W3/8H: RUBBER ROUND SECTION.

The RUBBER ROUND SECTION is a the manufacturer industrial component. Key specifications include material: RUBBER LOCATION NOT OTHERWISE SPECIFIED, special_features: 3/8" HOLE SIZE 4 STOPPER, 1HOLE, cross-sectional_shape_style: CIRCULAR W/ CENTER APERTURE, part_name_assigned_by_controlling_agency: STOPPER, RIBBER. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-658-5555, 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
LSG4M18W3/8H
NSN: 5330-01-658-5555
FSC: 5330 — Packing and Gasket Materials
CAGE: 049M3 — THE PLASTICOID CO., INC. DBA PLASTICOID CO INC (USA)
SPECIFICATIONS
materialRUBBER LOCATION NOT OTHERWISE SPECIFIED
special_features3/8" HOLE SIZE 4 STOPPER, 1HOLE
cross-sectional_shape_styleCIRCULAR W/ CENTER APERTURE
part_name_assigned_by_controlling_agencySTOPPER, RIBBER
NSN5330-01-658-5555
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: LSG4M18W3/8H MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR W/ CENTER APERTURE
•
MATERIAL: RUBBER LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLECIRCULAR W/ CENTER APERTURE
SPECIAL FEATURES3/8" HOLE SIZE 4 STOPPER, 1HOLE
PART NAME ASSIGNED BY CONTROLLING AGENCYSTOPPER, RIBBER
MATERIALRUBBER LOCATION NOT OTHERWISE SPECIFIED
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 LSG4M18W3/8H?
LSG4M18W3/8H is a RUBBER ROUND SECTION.
What is the NSN for LSG4M18W3/8H?
LSG4M18W3/8H is cataloged in the U.S. Government catalog under NSN 5330-01-658-5555. 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.