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Technical Data Sheet
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1603BC — CLOSER,DOOR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1603BC: CLOSER,DOOR.

The CLOSER,DOOR is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-286-5980, 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
1603BC
NSN: 5340-01-286-5980
FSC: 5340 — Hardware, Commercial
CAGE: 66821 — YALE SECURITY INC. DBA NORTON DOOR CONTROL (USA)
SPECIFICATIONS
Part Number1603BC
NSN5340-01-286-5980
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1603BC 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
SUBSTITUTES & CROSS-REFERENCES 1
1603Reference 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 1603BC?
1603BC is a CLOSER,DOOR.
What parts can replace 1603BC?
There is 1 known substitute for 1603BC: 1603. Substitute compatibility should be verified for your specific system.
What is the NSN for 1603BC?
1603BC is cataloged in the U.S. Government catalog under NSN 5340-01-286-5980. This indicates validated use in U.S. government and defense supply chains.
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