The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-077-7437, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-077-7437 |
| Primary Part Number | FS0777-437 |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | ENCASED |
| Control Type | REMOTE |
| Frequency Per Channel | 30.0 MEGAHERTZ NOMINAL OUTPUT CHANNEL |
| Connection Type | PRINTED CIRCUIT BOTTOM |
| Connection Contact Type and Quantity | 6 PRINTED CIRCUIT EXTERNAL |
| Operating Control Method | AUTOMATIC |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Average Life Measurement | NOT RATED |
| Environmental Protection | MOISTURE PROOF |
| Operating Temp Range | +0.0 TO 45.0 CELSIUS DEGC |
| Installation Design | MODULE |
| External DC Operating Voltage in Volts | 11.5 MINIMUM SINGLE VOLTAGE AND 12.5 MAXIMUM SINGLE VOLTAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FS0777-437 | Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc (USA) |
| 930739-1C | Gryphon M&t, Llc Dba Cdi Development Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 930738-1C | 5/9 Secondary reference Cts Valpey Corporation |
| 0305AC | 5/9 Secondary reference Palomar Products, Inc. |
| 930738-1C | 5/9 Secondary reference Murata Erie North America Inc State College Opns |
| 930738-1C | 3/2 Design control — primary reference U.S. Government activity |
| V01907-1 | 5/9 Secondary reference Murata Erie North America Inc State College Opns |
NSN 5955-01-077-7437 is a Oscillator,crystal Controlled, manufactured by Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-077-7437 has 2 manufacturer part numbers on file: FS0777-437 (Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc), 930739-1C (Gryphon M&t, Llc Dba Cdi Development Services Llc).
Key specifications for FS0777-437: Circuit Construction Type: SOLID STATE; Overall Height: 1.000 INCHES NOMINAL IN; Inclosure Type: ENCASED; Control Type: REMOTE. 13 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 5955-01-077-7437 has DEMIL Code B. 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.