The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-366-7705, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Sea Systems Command. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 — Oscillators and Piezoelectric Crystals (FSG 59) |
| Manufacturers | Wenzel International Inc Div Croven Crystals (CAGE 00809); Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems (CAGE 73168); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 5955-01-366-7705 |
| Primary Part Number | 5189174-021 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 5189174-021 | Wenzel International Inc Div Croven Crystals (CAN) |
| 5189174-021 | Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems (USA) |
| 5189174-021 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5955-01-366-7705 is a Crystal Unit,quartz, manufactured by Naval Sea Systems Command, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-366-7705 has 3 manufacturer part numbers on file: 5189174-021 (Wenzel International Inc Div Croven Crystals), 5189174-021 (Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems), 5189174-021 (Naval Sea Systems Command).
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 5955-01-366-7705 has DEMIL Code Q. 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.