The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-072-9808, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5955-01-072-9808 |
| Primary Part Number | 277-0442-020 |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | ENCASED |
| Frequency Per Channel | 3.2 MEGAHERTZ NOMINAL OUTPUT CHANNEL |
| Connection Type | SOLDER LUG BOTTOM |
| Connection Contact Type and Quantity | 4 SOLDER LUG EXTERNAL |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Identification Designator | 277-0442-020-13499 |
| Maximum Operating Altitude Rating | 20000.000 FEET FT |
| Average Life Measurement | NOT RATED |
| Installation Design | MODULE |
| External DC Operating Voltage in Volts | 18.0 MAXIMUM SINGLE VOLTAGE |
| 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 |
|---|---|
| 277-0442-020 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| MC386X2-002W | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 277-0442-020 | Power Control Devices, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 277-0442-020 | 5/9 Secondary reference Vectron International, Inc. |
NSN 5955-01-072-9808 is a Oscillator,crystal Controlled, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-072-9808 has 3 manufacturer part numbers on file: 277-0442-020 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), MC386X2-002W (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 277-0442-020 (Power Control Devices, Inc.).
Key specifications for 277-0442-020: Circuit Construction Type: SOLID STATE; Overall Height: 21.59 MILLIMETERS NOMINAL MM; Inclosure Type: ENCASED; Frequency Per Channel: 3.2 MEGAHERTZ NOMINAL OUTPUT CHANNEL. 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.
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.