The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-197-0028, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Watkins-Johnson Co Stewart Div. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-197-0028 |
| Primary Part Number | 2855-3 |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Watkins-Johnson Co Stewart Div |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | ENCASED |
| Connection Type | PLUG CONNECTOR FRONT |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Operating Temp Range | -54.0 TO 85.0 CELSIUS DEGC |
| Material | STEEL ENCLOSURE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 2855-3 | Watkins-Johnson Co Stewart Div (USA) |
| Reference | Meaning |
|---|---|
| 292419P1 | 1/3 Source control — Government-approved source U.S. Government activity |
| 2855-3 | 5/9 Secondary reference Watkins-Johnson Co |
NSN 5955-01-197-0028 is a Oscillator,crystal Controlled, manufactured by Watkins-Johnson Co Stewart Div, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-197-0028 has 1 manufacturer part number on file: 2855-3 (Watkins-Johnson Co Stewart Div).
4 possible matches (shared part number, not a government interchangeability claim): 5955-01-209-0712, 5955-01-223-8255, 5330-01-334-2426. Verify interchangeability with system specifications before substitution.
Key specifications for 2855-3: Circuit Construction Type: SOLID STATE; Overall Height: 1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN; Inclosure Type: ENCASED; Connection Type: PLUG CONNECTOR FRONT. 7 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 5955-01-197-0028 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.