The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-374-5481, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Thales Defense & Security Inc Dba Thales Communications Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 — Oscillators and Piezoelectric Crystals (FSG 59) |
| Manufacturers | M-Tron Industries, Inc (CAGE 23875); Wenzel International Inc Div Croven Crystals (CAGE 00809); Thales Defense & Security Inc Dba Thales Communications Inc (CAGE 23386) |
| Parameter | Value |
|---|---|
| NSN | 5955-01-374-5481 |
| Primary Part Number | SS-1600321-1 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Thales Defense & Security Inc Dba Thales Communications Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4142-003-1 | M-Tron Industries, Inc (USA) |
| SS-1600321-1 | Wenzel International Inc Div Croven Crystals (CAN) |
| SS-1600321-1 PRIMARY | Thales Defense & Security Inc Dba Thales Communications Inc (USA) |
| Reference | Meaning |
|---|---|
| SS-1600321-1 | 5/9 Secondary reference Vectron International, Inc. |
NSN 5955-01-374-5481 is a Crystal Unit,quartz, manufactured by Thales Defense & Security Inc Dba Thales Communications Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-374-5481 has 3 manufacturer part numbers on file: 4142-003-1 (M-Tron Industries, Inc), SS-1600321-1 (Wenzel International Inc Div Croven Crystals), SS-1600321-1 (Thales Defense & Security Inc Dba Thales Communications Inc).
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 5955-01-374-5481 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.