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1820A21 — THUMB TURN CAM LOCK SET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1820A21: THUMB TURN CAM LOCK SET.

The THUMB TURN CAM LOCK SET is a the manufacturer industrial component. Key specifications include material: ZINC, overall_diameter: 0.750 INCHES NOMINAL IN, special_features: WING HANDLE; MAXIMUM DOOR/DRAWER THICKNESS IS 0.234, surface_treatment: NICKEL, end_item_identification: NEXT HIGHER ASSEMBLY IS 6273-1, FOR AIRCRAFT CARRIER LANDING SYSTEM. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-523-2480, 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
1820A21
NSN: 5340-01-523-2480
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialZINC
overall_diameter0.750 INCHES NOMINAL IN
special_featuresWING HANDLE; MAXIMUM DOOR/DRAWER THICKNESS IS 0.234
surface_treatmentNICKEL
end_item_identificationNEXT HIGHER ASSEMBLY IS 6273-1, FOR AIRCRAFT CARRIER LANDING SYSTEM
accessory_components_and_quantity1.250 LG X 0.625 WD STRAIGHT CAM 1 EA; 1.125 LG X 0.625 WD REVERSIBLE OFFSET CAM 1 EA; WITH A HEX NUT, ASSEMBLY SCREW, AND LOCK WASHER
NSN5340-01-523-2480
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1820A21 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
KEY FEATURES
•
OVERALL DIAMETER: 0.750 INCHES NOMINAL IN
•
ACCESSORY COMPONENTS AND QUANTITY: 1.250 LG X 0.625 WD STRAIGHT CAM 1 EA; 1.125 LG X 0.625 WD REVERSIBLE OFFSET CAM 1 EA; WITH A HEX NUT, ASSEMBLY SCREW, AND LOCK WASHER
•
SURFACE TREATMENT: NICKEL
•
MATERIAL: ZINC
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.750 INCHES NOMINAL IN
ACCESSORY COMPONENTS AND QUANTITY1.250 LG X 0.625 WD STRAIGHT CAM 1 EA; 1.125 LG X 0.625 WD REVERSIBLE OFFSET CAM 1 EA; WITH A HEX NUT, ASSEMBLY SCREW, AND LOCK WASHER
SPECIAL FEATURESWING HANDLE; MAXIMUM DOOR/DRAWER THICKNESS IS 0.234
SURFACE TREATMENTNICKEL
END ITEM IDENTIFICATIONNEXT HIGHER ASSEMBLY IS 6273-1, FOR AIRCRAFT CARRIER LANDING SYSTEM
MATERIALZINC
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
TT625STDReference 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 1820A21?
1820A21 is a THUMB TURN CAM LOCK SET.
What parts can replace 1820A21?
There is 1 known substitute for 1820A21: TT625STD. Substitute compatibility should be verified for your specific system.
What is the NSN for 1820A21?
1820A21 is cataloged in the U.S. Government catalog under NSN 5340-01-523-2480. This indicates validated use in U.S. government and defense supply chains.
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