The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-780-7328, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5955-00-780-7328 |
| Primary Part Number | 810002-686 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.001 TO 0.001 |
| Terminal Diameter | 0.018 INCHES NOMINAL IN |
| Overall Diameter | 0.375 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 50.0 MAXIMUM |
| Style Designator | HAT TYPE, 3 WIRE LEADS |
| Diameter | 0.335 INCHES MAXIMUM IN |
| Drive Level Rating | 2.0 MILLIWATTS NOMINAL |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 4.0 NOMINAL |
| Operating Temp Range | +100.0 TO 130.0 CELSIUS DEGC |
| Specified Frequency | 12.000 MEGAHERTZ |
| 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 |
|---|---|
| 810002-686 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| BK3-1B-12MHZ | Bliley Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 6181516-003 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5955-00-780-7328 is a Crystal Unit,quartz, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-780-7328 has 2 manufacturer part numbers on file: 810002-686 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), BK3-1B-12MHZ (Bliley Technologies Inc).
Key specifications for 810002-686: Frequency Tolerance for Operating Temp in Percent: -0.001 TO 0.001; Terminal Diameter: 0.018 INCHES NOMINAL IN; Overall Diameter: 0.375 INCHES MAXIMUM IN; Terminal Length: 1.500 INCHES MINIMUM IN. 14 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 5955-00-780-7328 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.