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Technical Data Sheet
PartsTable / O-RING / 911643-1
911643-1 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, body_width: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, body_height: 0.200 INCHES NOMINAL IN, body_length: 0.870 INCHES NOMINAL IN, operating_temp_range: -55.0 TO 125.0 CELSIUS DEGC, cross-sectional_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-251-9394, 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
911643-1
NSN: 5331-00-251-9394
FSC: 5331 — O-RING
CAGE: 63117 — SICARD A DIVISION OF SMI-SNOWBLAST INC DBA SICARD (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
body_width0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
body_height0.200 INCHES NOMINAL IN
body_length0.870 INCHES NOMINAL IN
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
cross-sectional_height0.125 INCHES NOMINAL IN
end_item_identificationE-3A A
inclosure_configurationDUAL-IN-LINE
design_function_and_quantity4 FLIP-FLOP, D-TYPE
NSN5331-00-251-9394
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 911643-1 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
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
CU09600008Interchangeable
interchangeable cross-reference
interchangeable
10970-001Interchangeable
interchangeable cross-reference
interchangeable
001722-TLAInterchangeable
interchangeable cross-reference
interchangeable
10970Interchangeable
interchangeable cross-reference
interchangeable
13063Interchangeable
interchangeable cross-reference
interchangeable
186614Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 911643-1?
911643-1 is a MICROCIRCUIT,DIGITAL.
What parts can replace 911643-1?
There are 20 known substitutes for 911643-1: CU09600008, 10970-001, 001722-TLA and 17 more. Substitute compatibility should be verified for your specific system.
Is 911643-1 still available?
911643-1 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