The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-326-4181, 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. Government technical data includes 11 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 | 5955-01-326-4181 |
| Primary Part Number | 5816976 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Terminal Diameter | 0.0185 INCHES MAXIMUM IN |
| Overall Diameter | 0.370 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 50.0 MAXIMUM |
| Style Designator | HAT TYPE, 3 WIRE LEADS |
| Center to Center Distance Between Terminals | 0.192 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -30.0 TO 70.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 10.000 KILOHERTZ |
| 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 |
|---|---|
| 5816976 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5955-01-326-4181 is a Crystal Unit,quartz, manufactured by Naval Sea Systems Command, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-326-4181 has 1 manufacturer part number on file: 5816976 (Naval Sea Systems Command).
Key specifications for 5816976: Terminal Diameter: 0.0185 INCHES MAXIMUM IN; Overall Diameter: 0.370 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM IN; Mode of Oscillation: FUNDAMENTAL. 11 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 5955-01-326-4181 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.