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Technical Data Sheet
PartsTable / COMPONENT / PSX312-5
PSX312-5 ✓ 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 GASKET is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-140-4737, 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
PSX312-5
NSN: 5330-01-140-4737
FSC: 5330
CAGE: 83473 — PAWLING CORPORATION DBA PAWLING CORP DIV ARCHITECTURAL PRODUCTS (USA)
SPECIFICATIONS
Part NumberPSX312-5
NSN5330-01-140-4737
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PSX312-5 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 3
SL4221PC59Interchangeable
interchangeable cross-reference
interchangeable
SL4750PC59Interchangeable
interchangeable cross-reference
interchangeable
4314PInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PSX312-5?
PSX312-5 is a GASKET.
What parts can replace PSX312-5?
There are 3 known substitutes for PSX312-5: SL4221PC59, SL4750PC59, 4314P. Substitute compatibility should be verified for your specific system.
Is PSX312-5 still available?
PSX312-5 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026