The Meter,time Totalizing, cataloged under National Stock Number 6645-01-057-7987, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Essex Products Group, Inc. Dba Industrial Timer Company. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6645-01-057-7987 |
| Primary Part Number | C-2-120-60 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — No Item Name Available |
| Manufacturer | Essex Products Group, Inc. Dba Industrial Timer Company |
| Status | CANCELLED |
| Terminal Quantity | 2 |
| Terminal Type | SOLDER |
| Mounting Flange Diameter | 3.500 INCHES MAXIMUM IN |
| Electrical Movement Type | SYNCHRONOUS MOTOR |
| Indicator Type | DRUM REGISTER |
| Measurement Unit | HOURS |
| Unit Type | MOUNTED |
| Voltage Rating | 120.0 VOLTS NOMINAL |
| Smallest Increment Indicated | 0.10 |
| Mounting Method | FLUSH |
| Reset Feature | NOT PROVIDED |
| Movement Type | ELECTRICAL |
| Body Depth | 3.000 INCHES MAXIMUM IN |
| Operating Frequency | 60.0 HERTZ NOMINAL |
| Hermetic Protection | NOT PROVIDED |
| Marking Color | WHITE NUMERALS FOR HOURS,BLACK NUMERALS FOR TENTHS |
| Mounting Configuration | THREE 0.150 IN. DIA MTG HOLES ON 1.580 IN. RADIUS SPACED 120 DEG APART IN |
| Nondefinitive Spec/std Data | A GRADE AND II TYPE |
| Background Color | BLACK BACKGROUND ON HR WHEELS,WHITE BACKGROUND ON TENTHS WHEEL |
| Maximum Measurement | 99999.90 |
| Mounting Type | FLANGE |
| Body Diameter | 2.625 INCHES MAXIMUM IN |
| Current Type | AC |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| C-2-120-60 | Essex Products Group, Inc. Dba Industrial Timer Company (USA) |
| MIL-M-3971 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 632E | Cramer Co Division of Chestnut Group Inc (USA) |
| 1170238 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 10N-G3-H | Sangamo Weston Inc Engler Instruments Div Sub of Schlumberger Ltd (USA) |
| MIL-DTL-3971 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| NA602789A001 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| M3971/2-2 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M3971/2-6 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 1170238 | Arma Div Ambac Industries Inc |
| 465-1051-1 | Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA) |
| MS16971-2 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 635ES100AA0008A | Metermaster Inc (USA) |
| 10635000 | Henley Marine, Inc (USA) |
| HD654-99999 | De Jur-Amsco Corp (USA) |
| 31EX | Lee Co the J B T Div (USA) |
| A12574 | Vdo Control Systems Inc (USA) |
| JBTE31-EX | Lee Co the J B T Div (USA) |
| 911800077 | Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA) |
| 10N-G3 | Sangamo Weston Inc Engler Instruments Div Sub of Schlumberger Ltd (USA) |
NSN 6645-01-057-7987 is a Meter,time Totalizing, manufactured by Essex Products Group, Inc. Dba Industrial Timer Company, classified under FSC 6645 (No Item Name Available). Status: cancelled.
NSN 6645-01-057-7987 has 20 cross-referenced part numbers: C-2-120-60 (Essex Products Group, Inc. Dba Industrial Timer Company), MIL-M-3971 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 632E (Cramer Co Division of Chestnut Group Inc), 1170238 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 10N-G3-H (Sangamo Weston Inc Engler Instruments Div Sub of Schlumberger Ltd) and 15 more.
There are 12 known substitutes for 6645-01-057-7987: 6645-00-089-8842, 3020-00-132-5164, 6645-00-151-5280 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for C-2-120-60: Terminal Quantity: 2; Terminal Type: SOLDER; Mounting Flange Diameter: 3.500 INCHES MAXIMUM IN; Electrical Movement Type: SYNCHRONOUS MOTOR. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 6645-01-057-7987 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.