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Technical Data Sheet
19643 ✓ 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 body_width: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, body_height: 0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, body_length: 0.660 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND W/TOTEM POLE OUTPUT, output_logic_form: TRANSISTOR-TRANSISTOR LOGIC, inclosure_material: CERAMIC AND GLASS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-145-6975, 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
19643
NSN: 5330-01-145-6975
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
body_width0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
body_height0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
body_length0.660 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND W/TOTEM POLE OUTPUT
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
inclosure_materialCERAMIC AND GLASS
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_patternQUAD 2 INPUT
end_item_identificationCONTRACTOR LOGISTIC SUPPORT, MODEL M871, 30-FOOT TRAILER, LAUNDRY ADVANCED SYSTEM (LADDS), NSN 2330-00-122-6779, CONTRACT DAAK60-97-C-9222, TM 9-3510-122-24P
inclosure_configurationDUAL-IN-LINE
terminal_surface_treatmentSOLDER
NSN5330-01-145-6975
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 19643 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
20461Interchangeable
interchangeable cross-reference
interchangeable
19643Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19643?
19643 is a MICROCIRCUIT,DIGITAL.
What parts can replace 19643?
There are 2 known substitutes for 19643: 20461, 19643. Substitute compatibility should be verified for your specific system.
What is the NSN for 19643?
19643 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-145-6975. This indicates validated use in U.S. government and defense supply chains.
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