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Technical Data Sheet
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PR19543 — PR19543

✓ Government record, cited
THE PRESRAY CORPORATION · ORING SEAL
PRODUCT OVERVIEW

PR19543: PR19543.

The PR19543 is a THE PRESRAY CORPORATION industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-453-8142, 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
PR19543
NSN: 5331-01-453-8142
FSC: 5331 — O-ring
CAGE: 06425 — THE PRESRAY CORPORATION (USA)
SPECIFICATIONS
Part NumberPR19543
ManufacturerTHE PRESRAY CORPORATION
NSN5331-01-453-8142
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PR19543 MFR: THE PRESRAY CORPORATION ⚠ 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
2498-14-19-25ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 PR19543?
PR19543 is a PR19543 manufactured by THE PRESRAY CORPORATION.
What parts can replace PR19543?
There is 1 known substitute for PR19543: 2498-14-19-25A. Substitute compatibility should be verified for your specific system.
What is the NSN for PR19543?
PR19543 is cataloged in the U.S. Government catalog under NSN 5331-01-453-8142. This indicates validated use in U.S. government and defense supply chains.
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