The Meter,time Totalizing, cataloged under National Stock Number 6645-00-459-7719, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Curtis Instruments, Inc. Dba Curtis Pmc Division. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6645-00-459-7719 |
| Primary Part Number | 620-NT |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — No Item Name Available |
| Manufacturer | Curtis Instruments, Inc. Dba Curtis Pmc Division |
| Status | CANCELLED |
| Body Length | 1.010 INCHES NOMINAL IN |
| Hermetic Protection | NOT PROVIDED |
| Movement Type | ELECTROCHEMICAL |
| Voltage Rating | 115.0 VOLTS NOMINAL |
| Indicator Type | SCALE |
| Inscription Background Color | BLACK |
| Mounting Configuration | TWO 0.125 IN. DIA COUNTRSUNK MTG HOLES SPACED 1.219 IN. C TO C IN |
| Inscription Color | WHITE |
| Operating Frequency | 50.0 HERTZ MINIMUM AND 2.4 KILOHERTZ MAXIMUM |
| Flange Height | 1.440 INCHES NOMINAL IN |
| Mounting Method | FLUSH |
| Unit Type | MOUNTED |
| Scale Smallest Increment | 50.00 HOURS |
| Scale Range | +0.0 TO 1000.0 HOUR |
| Reset Feature | NOT PROVIDED |
| Body Depth | 0.200 INCHES NOMINAL IN |
| Terminal Quantity | 2 |
| Body Width | 0.300 INCHES NOMINAL IN |
| Current Type | AC |
| Terminal Type | SOLDER |
| Mounting Type | FLANGE |
| Mounting Flange Width | 0.360 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 620-NT | Curtis Instruments, Inc. Dba Curtis Pmc Division (USA) |
| 458-0381-110 | Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA) |
| MS90386-3H | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
NSN 6645-00-459-7719 is a Meter,time Totalizing, manufactured by Curtis Instruments, Inc. Dba Curtis Pmc Division, classified under FSC 6645 (No Item Name Available). Status: cancelled.
NSN 6645-00-459-7719 has 3 cross-referenced part numbers: 620-NT (Curtis Instruments, Inc. Dba Curtis Pmc Division), 458-0381-110 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), MS90386-3H (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).
There are 6 known substitutes for 6645-00-459-7719: 6645-00-092-5091, 6645-00-421-5287, 6645-00-442-0475 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 620-NT: Body Length: 1.010 INCHES NOMINAL IN; Hermetic Protection: NOT PROVIDED; Movement Type: ELECTROCHEMICAL; Voltage Rating: 115.0 VOLTS NOMINAL. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 6645-00-459-7719 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.