The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-998-0407, 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 15 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-998-0407 |
| Primary Part Number | 6739 |
| 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 |
| Mode of Oscillation | FUNDAMENTAL |
| Shunt Capacitance in Picofarads | 15.0 MAXIMUM |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| 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 |
| Style Designator | OVAL BODY, WIRE LEADS |
| Operating Temp Range | +0.0 TO 50.0 CELSIUS DEGC |
| Center to Center Distance Between Terminals | 0.486 INCHES NOMINAL IN |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Terminal Diameter | 0.030 INCHES NOMINAL IN |
| Body Thickness | 0.317 INCHES MAXIMUM IN |
| Specified Frequency | 3.550 MEGAHERTZ |
| Circuit Resonance | SERIES RESONANCE |
| Terminal Length | 1.500 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 77C706673PT9REVK | Lockheed Martin Corporation Div Rms (USA) |
| 6739 PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 77C706673PT9REVL | Lockheed Martin Corporation Div Rms (USA) |
NSN 5955-00-998-0407 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 5955-00-998-0407 has 3 cross-referenced part numbers: 77C706673PT9REVK (Lockheed Martin Corporation Div Rms), 6739 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 77C706673PT9REVL (Lockheed Martin Corporation Div Rms).
There are 11 known substitutes for 5955-00-998-0407: 5340-00-200-6773, 5977-00-250-9336, 4730-00-277-6948 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6739: Mode of Oscillation: FUNDAMENTAL; Shunt Capacitance in Picofarads: 15.0 MAXIMUM; Overall Thickness: 0.352 INCHES MAXIMUM IN; Equivalent Resistance Value in Ohms: 38000.0 NOMINAL. 17 total characteristics are documented in the Federal Logistics Information System.