The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-438-0690, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-438-0690 |
| Primary Part Number | Y15-0004-948 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| Status | ACTIVE |
| Specified Frequency | 3.6864 MEGAHERTZ |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| Y15-0004-948 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA) |
| Y15-0004-937 | Lokos Electronics, Llc (USA) |
| R1735-5BAC3.6864MHZ/ | Cts Inc (USA) |
| Reference | Meaning |
|---|---|
| 3.6864 HC49UV 50/100 | 5/9 Secondary reference Fox Enterprises, Inc Dba Fox Electronics |
NSN 5955-01-438-0690 is a Crystal Unit,quartz, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-438-0690 has 3 manufacturer part numbers on file: Y15-0004-948 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), Y15-0004-937 (Lokos Electronics, Llc), R1735-5BAC3.6864MHZ/ (Cts Inc).
Key specifications for Y15-0004-948: Specified Frequency: 3.6864 MEGAHERTZ. 1 specification is 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.
NSN 5955-01-438-0690 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.