The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-021-6173, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-021-6173 |
| Primary Part Number | 63A68D410 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Terminal Length | 2.250 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.745 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 100000.0 MAXIMUM |
| Overall Thickness | 0.345 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, WIRE LEADS |
| Drive Level Rating | 0.1 MILLIWATTS NOMINAL |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -55.0 TO 71.0 CELSIUS DEGC |
| Specified Frequency | 31.500 KILOHERTZ |
| Body Thickness | 0.317 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 |
|---|---|
| 63A68D410 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5955-01-021-6173 is a Crystal Unit,quartz, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-021-6173 has 1 manufacturer part number on file: 63A68D410 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 63A68D410: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Terminal Length: 2.250 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN; Mode of Oscillation: FUNDAMENTAL; Body Width: 0.745 INCHES MAXIMUM IN. 12 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.