The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-656-5699, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Seiko Instruments U.s.a. Inc.. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-656-5699 |
| Primary Part Number | SSPT7F-12.5PF20-R |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Seiko Instruments U.s.a. Inc. |
| Status | ACTIVE |
| Terminal Length | 1.05 MILLIMETERS NOMINAL MM |
| Terminal Thickness | 0.15 MILLIMETERS NOMINAL MM |
| Drive Level Rating | 0.1 MICROWATTS NOMINAL |
| Load Capacitance in Picofarads | 70.0 MINIMUM AND 12.5 MAXIMUM |
| Shunt Capacitance in Picofarads | 0.8 NOMINAL |
| Operating Temp Range | -40.0 TO 85.0 CELSIUS DEGC |
| Width | 0.60 MILLIMETERS NOMINAL TERMINAL MM |
| Material | PLASTIC COVER HOLDER |
| Specified Frequency | 32.768 KILOHERTZ |
| 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 |
|---|---|
| SSPT7F-12.5PF20-R PRIMARY | Seiko Instruments U.s.a. Inc. (USA) |
| SSPT7F-12.5PF20-R PRIMARY | Spectral Labs Incorporated Dba Spectral Labs (USA) |
NSN 5955-01-656-5699 is a Crystal Unit,quartz, manufactured by Seiko Instruments U.s.a. Inc., classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-656-5699 has 2 manufacturer part numbers on file: SSPT7F-12.5PF20-R (Seiko Instruments U.s.a. Inc.), SSPT7F-12.5PF20-R (Spectral Labs Incorporated Dba Spectral Labs).
Key specifications for SSPT7F-12.5PF20-R: Overall Height: 1.40 MILLIMETERS NOMINAL MM; Terminal Length: 1.05 MILLIMETERS NOMINAL MM; Terminal Thickness: 0.15 MILLIMETERS NOMINAL MM; Overall Length: 7.00 MILLIMETERS NOMINAL MM. 9 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.