The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-839-8077, is classified within Federal Supply Class 5955 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-839-8077 |
| Primary Part Number | 6740 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — No Item Name Available |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 38000.0 NOMINAL |
| Frequency Tolerance for Operating Temp in Percent | -0.050 TO 0.050 |
| Drive Level Rating | 10.0 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Specified Frequency | 3.150 KILOHERTZ |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Circuit Resonance | SERIES RESONANCE |
| Body Thickness | 0.317 INCHES MAXIMUM IN |
| Shunt Capacitance in Picofarads | 15.0 MAXIMUM |
| Style Designator | RECTANGULAR BODY, GULL WING |
| Material | GLASS COVER HOLDER |
| Operating Temp Range | -0.1 TO 65.0 CELSIUS DEGC |
| Terminal Diameter | 0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 77C706673PT10REVL | Lockheed Martin Corporation Div Rms (USA) |
| 6740 PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 77C706673PT10REVK PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
NSN 5955-00-839-8077 is a Crystal Unit,quartz, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955 (No Item Name Available). Status: active.
NSN 5955-00-839-8077 has 3 cross-referenced part numbers: 77C706673PT10REVL (Lockheed Martin Corporation Div Rms), 6740 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 77C706673PT10REVK (Lockheed Martin Corporation Div Rms).
There are 4 known substitutes for 5955-00-839-8077: 5305-00-329-8615, 5998-00-488-0725, 1660-00-544-8060 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6740: Body Width: 0.725 INCHES MAXIMUM IN; Terminal Length: 1.500 INCHES NOMINAL IN; Mode of Oscillation: FUNDAMENTAL; Equivalent Resistance Value in Ohms: 38000.0 NOMINAL. 18 total characteristics are documented in the Federal Logistics Information System.