The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-277-0762, 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 Northrop Grumman Support Services Corp. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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 | 5955-01-277-0762 |
| Primary Part Number | 128C850H04 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — No Item Name Available |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Diameter | 0.500 INCHES NOMINAL IN |
| Operating Temp Range | -10.0 TO 60.0 CELSIUS DEGC |
| Mode of Oscillation | FIFTH OVERTONE |
| Equivalent Resistance Value in Ohms | 80.0 MAXIMUM |
| Style Designator | HAT TYPE, 5 WIRE LEADS |
| Frequency Tolerance for Operating Temp in Percent | -0.001 TO 0.001 |
| Drive Level Rating | 500.0 MICROWATTS MAXIMUM |
| Second Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Terminal Diameter | 0.030 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Overall Diameter | 0.575 INCHES NOMINAL IN |
| Terminal Length | 0.250 INCHES MINIMUM IN |
| Distance Between Center Terminal and Outside Terminal Centers | 0.100 INCHES NOMINAL IN |
| Specified Frequency | 30.000 MEGAHERTZ |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 128C850H04 | Bliley Technologies Inc (USA) |
| 128C850H04 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 2183010-4 | Piezo Crystal Co (USA) |
| 128C850H04 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| 4-13-4 | Koby Inc (USA) |
| WH501 | Cts Inc (USA) |
NSN 5955-01-277-0762 is a Crystal Unit,quartz, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5955 (No Item Name Available). Status: active.
NSN 5955-01-277-0762 has 6 cross-referenced part numbers: 128C850H04 (Bliley Technologies Inc), 128C850H04 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 2183010-4 (Piezo Crystal Co), 128C850H04 (Northrop Grumman Support Services Corp), 4-13-4 (Koby Inc) and 1 more.
There are 12 known substitutes for 5955-01-277-0762: 4820-00-097-1579, 5305-00-206-1808, 5305-00-275-3967 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 128C850H04: Diameter: 0.500 INCHES NOMINAL IN; Operating Temp Range: -10.0 TO 60.0 CELSIUS DEGC; Mode of Oscillation: FIFTH OVERTONE; Equivalent Resistance Value in Ohms: 80.0 MAXIMUM. 16 total characteristics are documented in the Federal Logistics Information System.