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Technical Data Sheet
PartsTable / COMPONENT / WM-3-8
WM-3-8 ✓ 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 RING,WIPER is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, ring_style: CONCENTRIC, inside_diameter: 3.688 INCHES NOMINAL IN, outside_diameter: 4.000 INCHES NOMINAL IN, material_thickness: 0.285 INCHES NOMINAL IN, outer_edge_thickness: 0.075 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-419-9159, 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
WM-3-8
NSN: 5330-00-419-9159
FSC: 5330
CAGE: 46717 — PETTIBONE LLC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
ring_styleCONCENTRIC
inside_diameter3.688 INCHES NOMINAL IN
outside_diameter4.000 INCHES NOMINAL IN
material_thickness0.285 INCHES NOMINAL IN
outer_edge_thickness0.075 INCHES NOMINAL IN
NSN5330-00-419-9159
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: WM-3-8 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: 4.000 INCHES NOMINAL IN
•
MATERIAL: UNABLE TO DECODE
•
RING STYLE: CONCENTRIC
•
MATERIAL THICKNESS: 0.285 INCHES NOMINAL IN
•
INSIDE DIAMETER: 3.688 INCHES NOMINAL IN
•
OUTER EDGE THICKNESS: 0.075 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER4.000 INCHES NOMINAL IN
MATERIALUNABLE TO DECODE
RING STYLECONCENTRIC
MATERIAL THICKNESS0.285 INCHES NOMINAL IN
INSIDE DIAMETER3.688 INCHES NOMINAL IN
OUTER EDGE THICKNESS0.075 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
A1154-3Interchangeable
interchangeable cross-reference
interchangeable
AA1154-3Interchangeable
interchangeable cross-reference
interchangeable
MILB5687TYPE1C0MP0SITI0NAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WM-3-8?
WM-3-8 is a RING,WIPER.
What parts can replace WM-3-8?
There are 3 known substitutes for WM-3-8: A1154-3, AA1154-3, MILB5687TYPE1C0MP0SITI0NA. Substitute compatibility should be verified for your specific system.
Is WM-3-8 still available?
WM-3-8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026