| Item Name | Indicator Electrical Tachometer |
| Federal Supply Group (FSG) | Instruments and Laboratory Equipment |
| Federal Supply Class (FSC) | 6620 Engine Instruments |
| National Item Identification Number (NIIN) | 00-479-9425 (004799425) |
| NCB Code | USA (00) |
| Manufacturer | Celtech Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| MRC | Decoded Requirement | Clear Text Reply |
| AGAV | End Item Identification | A/M37T ENGINE TEST STAND |
| FEAT | Special Features | RANGES: 0-70,000 RPM DIGITAL, 0-130.0% RPM DIGITAL AND 0-125% RPM ANALOG; ACCURACY DIGITAL +/- 0.4% OF READING AND ANALOG +/- 1.0% FULL SCALE; READOUT LIGHT DISPLAY, DIGITAL; INPUT SIGNAL TACH GENERATOR MIL-G-9398 ROTATES AT 4200 RPM = 70 CPS WHEN ENGINE IS AT 100% ROTOR SPEED; SAMPLING RATE 0.2 -3 SECONDS |
| ACYN | Ac Voltage Rating | 105.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM |
| AKSF | Contact Type | PIN |
| ACZB | Frequency Rating | 60.0 HERTZ NOMINAL |
| HGTH | Height | 6.200 INCHES NOMINAL |
| AMNL | Presentation Type | DIAL AND DIGITAL DISPLAY |
| ABGL | Width | 6.100 INCHES NOMINAL |
| SUPP | Supplementary Features | T.O. 33D4-6-212-41 |
| ABRY | Length | 12.000 INCHES NOMINAL |
| ACDC | Current Type | AC |
| AFRA | Contact Quantity | 7 |
| ASKZ | Electrical Connection Identifying Number | MS3102E-14S-7P |
| CXCY | Part Name Assigned By Controlling Agency | SPEED INDICATOR |
| ASKX | Electrical Connection Quantity | 1 |
| Relevant Components for NSN - 6620-00-479-9425, 6620004799425 | ||||
| 6685-01-496-6945 (6685014966945) | 6625-00-991-5146 (6625009915146) | 6695-01-165-6856 (6695011656856) | 6680-01-394-7022 (6680013947022) | |
| 6625-01-522-6958 (6625015226958) | 6685-00-756-9537 (6685007569537) | 6615-01-509-3109 (6615015093109) | 6605-01-382-7819 (6605013827819) | |
| 6625-00-133-7757 (6625001337757) | 6685-00-282-6671 (6685002826671) | 6685-01-611-3893 (6685016113893) | 6625-00-543-2919 (6625005432919) | |
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