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Technical Data Sheet
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1723A4 — 1723A4

✓ Government record, cited
MCMASTER-CARR SUPPLY COMPANY · ORING SEAL
PRODUCT OVERVIEW

1723A4: 1723A4.

The 1723A4 is a MCMASTER-CARR SUPPLY COMPANY industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-455-4217, 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
1723A4
NSN: 5340-01-455-4217
FSC: 5340 — Hardware, Commercial
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
Part Number1723A4
ManufacturerMCMASTER-CARR SUPPLY COMPANY
NSN5340-01-455-4217
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1723A4 MFR: MCMASTER-CARR SUPPLY COMPANY ⚠ 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
SUBSTITUTES & CROSS-REFERENCES 1
8342610Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1723A4?
1723A4 is a 1723A4 manufactured by MCMASTER-CARR SUPPLY COMPANY.
What parts can replace 1723A4?
There is 1 known substitute for 1723A4: 8342610. Substitute compatibility should be verified for your specific system.
What is the NSN for 1723A4?
1723A4 is cataloged in the U.S. Government catalog under NSN 5340-01-455-4217. This indicates validated use in U.S. government and defense supply chains.
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