NSN 6620-00-553-8892 005538892
Product Details | TACHOMETER GENERATOR
6620-00-553-8892 A generator consisting of a series of mounted coils surrounding a rotating permanent magnet or a permanent magnet and a rotating armature. The voltage output is directly proportional to the speed of rotation of the shaft. When used with an associated indicator, transmits such data as revolutions per minute, speed of travel, and the like. May also be used in servomechanism loops as a system stabilizer. Excludes rotary inverters, rotary converters, motor generators, dynamotors, generator sets, synchros, frequency or phase changers, and engine accessory generators.
Part Alternates: 005538892
Instruments and Laboratory Equipment | Engine Instruments
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | 00-553-8892 | 20241 ( GENERATOR, TACHOMETER ) |
Drawings & Photos | NSN 6620-00-553-8892
Demand History | NSN 6620-00-553-8892
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 6620-00-553-8892 | 2025-11-311 | 1 | US |
| MS250384 | 2025-04-99 | 1 | GR |
| MS250384 | 2025-01-28 | 1 | United States |
| 6620-00-553-8892 | 2020-09-266 | 1 | Indonesia |
| 6620-00-553-8892 | 2020-09-266 | 4 | Indonesia |
| MS250384 | 2016-09-271 | 1 | US |
| 6620-00-553-8892 | 2016-01-26 | 5 | Spain |
| MS250384 | 2013-12-336 | 1 | Hong Kong |
| MS25038-4 | 2013-05-133 | 1 | United States |
| 6620-00-553-8892 | 2013-04-105 | 2 | United States |
| MS250384 | 2013-02-39 | 4 | Malaysia |
| MS250384 | 2013-02-39 | 1 | Malaysia |
| 6620-00-553-8892 | 2012-08-220 | 3 | United States |
| 6620-00-553-8892 | 2012-06-177 | 36 | US |
| SCD10271 | 2012-06-177 | 36 | US |
| 6620-00-553-8892 | 2011-10-274 | 5 | MY |
| 6620-00-553-8892 | 2011-07-201 | 80 | United States |
| 6620-00-553-8892 | 2010-08-238 | 1 | US |
| MS250384 | 2010-06-165 | 1 | Malaysia |
| 6620-00-553-8892 | 2010-05-137 | 2 | United Kingdom |
| 6620-00-553-8892 | 2010-02-53 | 2 | US |
| 6620-00-553-8892 | 2010-01-08 | 1 | Malaysia |
| 6620-00-553-8892 | 2009-12-362 | 1 | Malaysia |
| MS250384 | 2008-11-318 | 1 | US |
| 6620-00-553-8892 | 2008-08-227 | 1 | United States |
| 6620-00-553-8892 | 2008-08-217 | 1 | United States |
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Related Products | NSN 6620-00-553-8892
Technical Data | NSN 6620-00-553-8892
| Characteristic | Specifications |
|---|---|
| OVERALL LENGTH | 4.312 INCHES |
| LENGTH OF SHAFT FROM HOUSING | 0.467 INCHES SINGLE END |
| MOUNTING METHOD | PAD |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 UNTHREADED HOLE |
| NOMINAL CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 1.876 INCHES |
| NOMINAL CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO HEIGHT | 1.876 INCHES |
| TERMINAL TYPE AND QUANTITY | 1 CONNECTOR, PLUG |
| CALIBRATION VOLTAGE OUTPUT TYPE IN VOLTS | 21.0 AC |
| CALIBRATION SPEED IN RPM | 4200.0 |
| SHAFT ROTATION DIRECTION | CLOCKWISE OR COUNTERCLOCKWISE SINGLE END |
| ROTOR SPEED RATING IN RPM | 5500.0 SINGLE FULL LOAD |
| SHAFT END CHARACTERISTIC | A15 SINGLE STYLE SINGLE END |
| SHAFT DIAMETER | 0.310 INCHES MINIMUM AND 0.312 INCHES MAXIMUM SINGLE END |
| FLATTED PORTION LENGTH | 0.431 INCHES MINIMUM AND 0.503 INCHES MAXIMUM SINGLE END |
| WIDTH ACROSS FLATS | 0.243 INCHES MINIMUM AND 0.245 INCHES MAXIMUM SINGLE END |
| FEATURES PROVIDED | HORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION |
| TEST DATA DOCUMENT | 81349-MIL-G-9398 SPECIFICATION |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILG9398 |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILG9398-2TYPEMB6 |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILG9398TYPEMB6 |
Restrictions/Controls & Freight Information | NSN 6620-00-553-8892
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Controlled Inventory Item Code: | 7 | NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7). |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||