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A1203 — SWITCH,TOGGLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A1203: SWITCH,TOGGLE.

The SWITCH,TOGGLE is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: COPPER ALLOY, case_style: SQUARE, seal_width: 0.188 INCHES NOMINAL IN, mounting_pad: NOT INCLUDED, overall_width: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-286-9939, 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
A1203
NSN: 5330-00-286-9939
NIINs: 002869939, 007020752, 007152536, 013511768, 014316626
FSC: 5330 — Packing and Gasket Materials
CAGE: 76446 — MONARCH GOVERNOR CO (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialCOPPER ALLOY
case_styleSQUARE
seal_width0.188 INCHES NOMINAL IN
mounting_padNOT INCLUDED
belt_quantity3
overall_width0.500 INCHES NOMINAL IN
overall_length2.000 INCHES NOMINAL IN
performance_typeSTANDARD CAPACITY
style_designatorPLAIN, COG OR NOTCHED
surface_treatmentCADMIUM CASE
material_thickness0.048 INCHES NOMINAL IN
NSN5330-00-286-9939
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A1203 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
•
SEAL WIDTH: 0.188 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 0.938 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 0.438 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM CASE
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.188 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER0.938 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER0.438 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM CASE
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 4
X800Reference document
Same NSN cross-reference
Reference document — Secondary reference
07-865037Reference document
Same NSN cross-reference
Reference document — Secondary reference
060E028Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
865037Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A1203?
A1203 is a SWITCH,TOGGLE.
What parts can replace A1203?
There are 4 known substitutes for A1203: X800, 07-865037, 060E028 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1203?
A1203 is cataloged in the U.S. Government catalog under NSN 5330-00-286-9939. This indicates validated use in U.S. government and defense supply chains.
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