The Meter,time Totalizing, cataloged under National Stock Number 6645-00-925-3857, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hamilton Watch Co Inc. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-00-925-3857 |
| Primary Part Number | M575-4-40DCNB |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — No Item Name Available |
| Manufacturer | Hamilton Watch Co Inc |
| Status | ACTIVE |
| Mounting Method | FLUSH |
| Current Type | DC |
| Terminal Type | SOLDER LUG OR STUD |
| Electrical Movement Type | MAGNETIC |
| Movement Type | ELECTRICAL |
| Mounting Configuration | THREE 0.150 IN. DIA MTG HOLES ON 1.580 IN. RADIUS SPACED 120 DEG APART IN |
| Maximum Measurement | 9999.90 |
| Reset Feature | NOT PROVIDED |
| Indicator Type | DRUM REGISTER |
| Smallest Increment Indicated | 0.10 |
| Body Depth | 3.000 INCHES MAXIMUM IN |
| Marking Color | WHITE NUMERALS FOR HOURS,BLACK NUMERALS FOR TENTHS |
| Nondefinitive Spec/std Data | B GRADE AND 1 TYPE |
| Mounting Flange Diameter | 3.500 INCHES MAXIMUM IN |
| Voltage Rating | 4.0 VOLTS MINIMUM AND 40.0 VOLTS MAXIMUM |
| Unit Type | MOUNTED |
| Measurement Unit | HOURS |
| Hermetic Protection | NOT PROVIDED |
| Background Color | BLACK BACKGROUND ON HR WHEELS,WHITE BACKGROUND ON TENTHS WHEEL |
| Body Diameter | 2.625 INCHES MAXIMUM IN |
| Mounting Type | PANEL |
| Terminal Quantity | 2 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M575-4-40DCNB | Hamilton Watch Co Inc (USA) |
| H600 | Maxima Technologies & Systems Llc (USA) |
| M575S4-40DCNB | Hamilton Watch Co Inc (USA) |
| MIL-M-3971 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 56043 | Maxima Technologies & Systems Llc (USA) |
| M3971/1-7 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 775 | Maxima Technologies & Systems Llc (USA) |
| M5657 | Hobbs Corp (USA) |
| 56042 | Hamilton Watch Co Inc (USA) |
| 56043 | Hamilton Watch Co Inc (USA) |
| 56042 | Maxima Technologies & Systems Llc (USA) |
NSN 6645-00-925-3857 is a Meter,time Totalizing, manufactured by Hamilton Watch Co Inc, classified under FSC 6645 (No Item Name Available). Status: active.
NSN 6645-00-925-3857 has 11 cross-referenced part numbers: M575-4-40DCNB (Hamilton Watch Co Inc), H600 (Maxima Technologies & Systems Llc), M575S4-40DCNB (Hamilton Watch Co Inc), MIL-M-3971 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 56043 (Maxima Technologies & Systems Llc) and 6 more.
There are 12 known substitutes for 6645-00-925-3857: 6645-00-151-5280, 6645-00-557-0159, 3830-00-779-5957 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for M575-4-40DCNB: Mounting Method: FLUSH; Current Type: DC; Terminal Type: SOLDER LUG OR STUD; Electrical Movement Type: MAGNETIC. 22 total characteristics are documented in the Federal Logistics Information System.