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4021-REG-RH AL — CLOSER,DOOR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4021-REG-RH AL: CLOSER,DOOR.

The CLOSER,DOOR is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-682-7590, 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
4021-REG-RH AL
NSN: 5340-01-682-7590
FSC: 5340 — Hardware, Commercial
CAGE: 0LHD6 — LCN CLOSERS (USA)
SPECIFICATIONS
special_featuresMANUAL HYDRAULIC LCN 4021 SERIES DOOR CLOSER HEAVY DUTY INTERIOR AND EXTERIOR MATERIAL: FORGED STEEL WEIGHT: 10.9 LBS COLOR: ALUMINUM DIMENSIONS: 2.25" NO HOLD OPEN RIGHT HAND ORIENTATION LBS
NSN5340-01-682-7590
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4021-REG-RH AL 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
SPECIAL FEATURESMANUAL HYDRAULIC LCN 4021 SERIES DOOR CLOSER HEAVY DUTY INTERIOR AND EXTERIOR MATERIAL: FORGED STEEL WEIGHT: 10.9 LBS COLOR: ALUMINUM DIMENSIONS: 2.25" NO HOLD OPEN RIGHT HAND ORIENTATION LBS
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
46TM70Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 4021-REG-RH AL?
4021-REG-RH AL is a CLOSER,DOOR.
What parts can replace 4021-REG-RH AL?
There is 1 known substitute for 4021-REG-RH AL: 46TM70. Substitute compatibility should be verified for your specific system.
What is the NSN for 4021-REG-RH AL?
4021-REG-RH AL is cataloged in the U.S. Government catalog under NSN 5340-01-682-7590. This indicates validated use in U.S. government and defense supply chains.
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