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21-19746 PC12CP — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21-19746 PC12CP: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include end_item_identification: SUB ATMOSPHERE CONTROL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-172-5937, 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
21-19746 PC12CP
NSN: 5330-01-172-5937
FSC: 5330 — Packing and Gasket Materials
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
end_item_identificationSUB ATMOSPHERE CONTROL
NSN5330-01-172-5937
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21-19746 PC12CP 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONSUB ATMOSPHERE CONTROL
SUBSTITUTES & CROSS-REFERENCES 3
2-443 E515-80Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
2-443 E515-80CPReference document
Same NSN cross-reference
Reference document — Secondary reference
21-19746 PC12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21-19746 PC12CP?
21-19746 PC12CP is a PACKING,PREFORMED.
What parts can replace 21-19746 PC12CP?
There are 3 known substitutes for 21-19746 PC12CP: 2-443 E515-80, 2-443 E515-80CP, 21-19746 PC12. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-19746 PC12CP?
21-19746 PC12CP is cataloged in the U.S. Government catalog under NSN 5330-01-172-5937. This indicates validated use in U.S. government and defense supply chains.
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