The Blocking Unit,ophthalmic Lens, cataloged under National Stock Number 6540-00-494-1852, is classified within Federal Supply Class 6540 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Gerber Coburn Optical Industries Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6540-00-494-1852 |
| Primary Part Number | 99 |
| Item Name | Blocking Unit,ophthalmic Lens |
| FSC / FSG | 6540 / 65 — No Item Name Available |
| Manufacturer | Gerber Coburn Optical Industries Inc |
| Status | ACTIVE |
| Frequency Rating | 50.0 HERTZ NOMINAL |
| Design Type | LOW MELTING POINT ALLOY BLOCKING |
| Accessory Components and Quantity | ADAPTER,WATER RING,FOR COLORED LENSES 1; ALLOY BLOCKING,FOR GLASS LENSES 100 LB; BLOCK,6 DIOPTER BASE CURVE 75; BLOCK,8 DIOPTER BASE CURVE 25; BLOCK,12 DIOPTER BASE CURVE 4;CENTER HARD STEEL 100; DEBLOCKER,REGULAR 2; GAGE,PRISM 2 SETS; PRE-COAT SPRAY 24 CANS; RING,LENS POSITION 22; RING,NESTING,NEOPRENE 6 LBS |
| Preheating Unit Thermostatic Control | NOT INCLUDED |
| Supplementary Features | REQUISITION SHOULD STATE FREQUENCY OF ELECTRICAL CURRENT,NUMBER OF WIRES IN DISTRIBUTION SYSTEM,WHETHER SINGLE PHASE OR THREE PHASE,AND VOLTAGE |
| Lens Chuck Type | MECHANICAL |
| Blocking Table Protractor | NOT INCLUDED |
| Blocking Table Quantity | 1 |
| Current Type | AC |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Thermostatic Control | INCLUDED |
| Voltage Rating | 115.0 VOLTS NOMINAL |
| Blocking Table Type | NONTILTING |
| Audible Timing Device | NOT INCLUDED |
| Voltage Rating | 220.0 VOLTS NOMINAL |
| Accessory Components | INTEGRAL MELTING POT |
| Preheating Unit Type | RECLAIM TANK |
| Acquisition Status | ACTIVE |
| Successor | 5340-00-473-5957 |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 99 | Gerber Coburn Optical Industries Inc (USA) |
NSN 6540-00-494-1852 is a Blocking Unit,ophthalmic Lens, manufactured by Gerber Coburn Optical Industries Inc, classified under FSC 6540 (No Item Name Available). Status: active.
NSN 6540-00-494-1852 has 1 cross-referenced part number: 99 (Gerber Coburn Optical Industries Inc).
There are 2 known substitutes for 6540-00-494-1852: 5340-00-473-5957, 6130-01-034-4059. Verify interchangeability with system specifications before substitution.
Key specifications for 99: Frequency Rating: 50.0 HERTZ NOMINAL; Design Type: LOW MELTING POINT ALLOY BLOCKING; Accessory Components and Quantity: ADAPTER,WATER RING,FOR COLORED LENSES 1; ALLOY BLOCKING,FOR GLASS LENSES 100 LB; BLOCK,6 DIOPTER BASE CURVE 75; BLOCK,8 DIOPTER BASE CURVE 25; BLOCK,12 DIOPTER BASE CURVE 4;CENTER HARD STEEL 100; DEBLOCKER,REGULAR 2; GAGE,PRISM 2 SETS; PRE-COAT SPRAY 24 CANS; RING,LENS POSITION 22; RING,NESTING,NEOPRENE 6 LBS; Preheating Unit Thermostatic Control: NOT INCLUDED. 17 total characteristics are documented in the Federal Logistics Information System.