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2938-20 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2938-20: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER, center_hole_diameter: 0.144 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN, cross-sectional_height: 0.086 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-851-2188, 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
2938-20
NSN: 5331-00-851-2188
FSC: 5331 — O-ring
CAGE: 41387 — SIEMENS INDUSTRY, INC. DBA SIEMENS ENERGY DIV PROCESS INDUSTRIES AND DRIVES (USA)
SPECIFICATIONS
materialRUBBER
center_hole_diameter0.144 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
cross-sectional_height0.086 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
NSN5331-00-851-2188
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2938-20 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 HEIGHT: 0.086 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.144 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.086 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.144 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 1
2938-24Reference 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 2938-20?
2938-20 is a O-RING.
What parts can replace 2938-20?
There is 1 known substitute for 2938-20: 2938-24. Substitute compatibility should be verified for your specific system.
What is the NSN for 2938-20?
2938-20 is cataloged in the U.S. Government catalog under NSN 5331-00-851-2188. This indicates validated use in U.S. government and defense supply chains.
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