The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-067-2555, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telemechanics Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5955-01-067-2555 |
| Primary Part Number | 401655 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Terminal Diameter | 0.016 INCHES NOMINAL IN |
| Terminal Length | 2.000 INCHES NOMINAL IN |
| Body Width | 0.688 INCHES NOMINAL IN |
| Overall Thickness | 0.156 INCHES NOMINAL IN |
| Style Designator | OVAL BODY, WIRE LEADS |
| Center to Center Distance Between Terminals | 0.500 INCHES NOMINAL IN |
| Specified Frequency | 896.000 KILOHERTZ |
| Body Thickness | 0.156 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 401655 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 401655 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5955-01-067-2555 is a Crystal Unit,quartz, manufactured by Telemechanics Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-067-2555 has 1 manufacturer part number on file: 401655 (Telemechanics Inc).
Key specifications for 401655: Terminal Diameter: 0.016 INCHES NOMINAL IN; Terminal Length: 2.000 INCHES NOMINAL IN; Body Width: 0.688 INCHES NOMINAL IN; Overall Thickness: 0.156 INCHES NOMINAL IN. 8 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.
NSN 5955-01-067-2555 has DEMIL Code B. 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.