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Technical Data Sheet
PartsTable / O-RING / 905 0338.4
905 0338.4 ✓ 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 905 0338.4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-283-7783, 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
905 0338.4
NSN: 5331-01-283-7783
FSC: 5331 — O-RING
CAGE: 26270 — GREENLEE BROS AND CO (USA)
SPECIFICATIONS
Part Number905 0338.4
NSN5331-01-283-7783
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 905 0338.4 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: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1-2INSTMDISCInterchangeable
interchangeable cross-reference
interchangeable
50338Interchangeable
interchangeable cross-reference
interchangeable
821LXInterchangeable
interchangeable cross-reference
interchangeable
SCB69784Interchangeable
interchangeable cross-reference
interchangeable
FBG015DC-BDONDNInterchangeable
interchangeable cross-reference
interchangeable
FBG015DC-BDONHNInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 905 0338.4?
905 0338.4 is a 905 0338.4.
What parts can replace 905 0338.4?
There are 8 known substitutes for 905 0338.4: 1-2INSTMDISC, 50338, 821LX and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 905 0338.4?
905 0338.4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-283-7783. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026