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Technical Data Sheet
PartsTable / COMPONENT / 3515-18
3515-18 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 0.375 INCHES NOMINAL IN, material: RUBBER SYNTHETIC BOTTOM RING, inside_diameter: 0.750 INCHES NOMINAL IN, outside_diameter: 1.250 INCHES NOMINAL IN, cross-sectional_shape_style: SPECIAL BOTTOM RING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-948-1499, 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
3515-18
NSN: 5330-00-948-1499
FSC: 5330
CAGE: 16583 — GH BETTIS A GALVESTON-HOUSTON CO (USA)
SPECIFICATIONS
height0.375 INCHES NOMINAL IN
materialRUBBER SYNTHETIC BOTTOM RING
inside_diameter0.750 INCHES NOMINAL IN
outside_diameter1.250 INCHES NOMINAL IN
intermediate_ring_quantity1
cross-sectional_shape_styleSPECIAL BOTTOM RING
NSN5330-00-948-1499
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3515-18 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
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL TOP RING
•
MATERIAL: RUBBER SYNTHETIC BOTTOM RING
•
INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
INTERMEDIATE RING QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESPECIAL TOP RING
CROSS-SECTIONAL SHAPE STYLESPECIAL INTERMEDIATE RING
MATERIALRUBBER SYNTHETIC BOTTOM RING
MATERIALRUBBER SYNTHETIC TOP RING
MATERIALRUBBER SYNTHETIC INTERMEDIATE RING
INSIDE DIAMETER0.750 INCHES NOMINAL IN
INTERMEDIATE RING QUANTITY1
CROSS-SECTIONAL SHAPE STYLESPECIAL BOTTOM RING
HEIGHT0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
2006 3/16Interchangeable
interchangeable cross-reference
interchangeable
10912Interchangeable
interchangeable cross-reference
interchangeable
1836M3A10912Interchangeable
interchangeable cross-reference
interchangeable
1836M3A15Interchangeable
interchangeable cross-reference
interchangeable
BZ2RQ18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3515-18?
3515-18 is a PACKING ASSEMBLY.
What parts can replace 3515-18?
There are 12 known substitutes for 3515-18: B94.11M, 2006 3/16, 10912 and 9 more. Substitute compatibility should be verified for your specific system.
Is 3515-18 still available?
3515-18 is currently cancelled.
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Last verified: July 2026