The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-195-6166, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Us Army Aviation and Missile Command. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-195-6166 |
| Primary Part Number | 11571254 |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | HERMETICALLY SEALED |
| Frequency Per Channel | 72.576 MEGAHERTZ NOMINAL OPERATING CHANNEL |
| Connection Type | PIN BOTTOM |
| Connection Contact Type and Quantity | 4 PIN EXTERNAL |
| Operating Control Method | AUTOMATIC |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Identification Designator | 11571254-18876 |
| Average Life Measurement | NOT RATED |
| Environmental Protection | MOISTURE PROOF |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Installation Design | MODULE |
| External DC Operating Voltage in Volts | 5.0 NOMINAL SINGLE VOLTAGE |
| 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 |
|---|---|
| 11571254 PRIMARY | Us Army Aviation and Missile Command (USA) |
| MC741A1-672 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| Reference | Meaning |
|---|---|
| CO-402D-2B-72.576MHZ | 5/9 Secondary reference Vectron International Div. of Dover Electronics Inc |
| CO-402D-2B-72.576MHZ | C/1 Advisory reference — outside the item-of-supply concept Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| MC741A1-72.576MHZ | 5/9 Secondary reference Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
NSN 5955-01-195-6166 is a Oscillator,crystal Controlled, manufactured by Us Army Aviation and Missile Command, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-195-6166 has 2 manufacturer part numbers on file: 11571254 (Us Army Aviation and Missile Command), MC741A1-672 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
Key specifications for 11571254: Circuit Construction Type: SOLID STATE; Overall Height: 0.400 INCHES NOMINAL IN; Inclosure Type: HERMETICALLY SEALED; Frequency Per Channel: 72.576 MEGAHERTZ NOMINAL OPERATING CHANNEL. 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 5955-01-195-6166 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.