The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-338-3588, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cts Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-338-3588 |
| Primary Part Number | R1635-5-BC 7.68MHZ |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Cts Inc |
| Status | ACTIVE |
| Terminal Diameter | 0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Body Width | 0.407 INCHES MAXIMUM IN |
| Overall Thickness | 0.183 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, WIRE LEADS |
| Center to Center Distance Between Terminals | 0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -55.0 TO 100.0 CELSIUS DEGC |
| Specified Frequency | 7.680 MEGAHERTZ |
| Body Thickness | 0.150 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R1635-5-BC 7.68MHZ PRIMARY | Cts Inc (USA) |
| R1636-5BC-7.68MHZ | Cts Inc (USA) |
NSN 5955-01-338-3588 is a Crystal Unit,quartz, manufactured by Cts Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-338-3588 has 2 manufacturer part numbers on file: R1635-5-BC 7.68MHZ (Cts Inc), R1636-5BC-7.68MHZ (Cts Inc).
Key specifications for R1635-5-BC 7.68MHZ: Terminal Diameter: 0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES NOMINAL IN; Body Width: 0.407 INCHES MAXIMUM IN; Overall Thickness: 0.183 INCHES MAXIMUM IN. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.