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Technical Data Sheet
4953 ✓ Verified by PartsTable
Zyxel · COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SEMICONDUCTOR DEVICE,THYRISTOR is a Zyxel industrial component. Key specifications include body_length: 1.000 INCHES NOMINAL IN, step_length: 0.406 INCHES NOMINAL IN, step_diameter: 1.625 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN, chamfer_length: 0.016 INCHES NOMINAL IN, inside_diameter: 1.182 INCHES NOMINAL IN, outside_diameter: 2.245 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-300-3727, 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
4953
NSN: 4320-00-300-3727
FSC: 4320
CAGE: 54641 — LEAR SIEGLER INC SHERWOOD DIV (USA)
SPECIFICATIONS
body_length1.000 INCHES NOMINAL IN
step_length0.406 INCHES NOMINAL IN
step_diameter1.625 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
chamfer_length0.016 INCHES NOMINAL IN
inside_diameter1.182 INCHES NOMINAL IN
outside_diameter2.245 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
special_featuresCOMPANY ITEM NAME-FIXTURE INLET
chamfer_angle_in_deg45.0
fsc_application_dataVELCON FILTER
nominal_overall_width1.100 INCHES IN
functional_descriptionUSED DURING TEST OF GTA-11 AIR SHUROFF--CENC VALVE
nominal_overall_length1.600 INCHES IN
NSN4320-00-300-3727
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Zyxel SEMICONDUCTOR DEVICE,THYRISTOR TITLE COMPONENT PN 4953 MFR Zyxel SEMICONDUCTOR DEVICE,T
KEY FEATURES
CHAMFER ANGLE IN DEG: 45.0
BODY LENGTH: 1.000 INCHES NOMINAL IN
OUTSIDE DIAMETER: 2.245 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
STEP DIAMETER: 1.625 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
STEP LENGTH: 0.406 INCHES NOMINAL IN
CHAMFER LENGTH: 0.016 INCHES NOMINAL IN
INSIDE DIAMETER: 1.182 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CHAMFER ANGLE IN DEG45.0
BODY LENGTH1.000 INCHES NOMINAL IN
OUTSIDE DIAMETER2.245 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
STEP DIAMETER1.625 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
STEP LENGTH0.406 INCHES NOMINAL IN
CHAMFER LENGTH0.016 INCHES NOMINAL IN
INSIDE DIAMETER1.182 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
D15-664NPC527T0531-574Interchangeable
interchangeable cross-reference
interchangeable
D15-746LPC527T0531-574Interchangeable
interchangeable cross-reference
interchangeable
D15-746MPC527T0531-574Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-83483Interchangeable
interchangeable cross-reference
interchangeable
4953 ONE POUND CANInterchangeable
interchangeable cross-reference
interchangeable
MIL-A-13881Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4953?
4953 is a SEMICONDUCTOR DEVICE,THYRISTOR manufactured by Zyxel.
What parts can replace 4953?
There are 11 known substitutes for 4953: D15-664NPC527T0531-574, D15-746LPC527T0531-574, D15-746MPC527T0531-574 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4953?
4953 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-300-3727. This indicates validated use in U.S. government and defense supply chains.
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