The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-153-7635, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Q-Tech Corp Dba Q-Tech Corp. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-153-7635 |
| Primary Part Number | MCM677B-4.474MHZ |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Q-Tech Corp Dba Q-Tech Corp |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | HERMETICALLY SEALED |
| Overall Diameter | 0.505 INCHES MAXIMUM IN |
| Precious Material | GOLD |
| Frequency Per Channel | 4.474 MEGAHERTZ NOMINAL OUTPUT CHANNEL |
| Signal Voltage Rating Per Channel | 2.400 VOLTS MINIMUM OUTPUT AND 5.500 VOLTS MAXIMUM OUTPUT |
| Connection Type | PRINTED CIRCUIT BOTTOM |
| Connection Contact Type and Quantity | 6 PRINTED CIRCUIT EXTERNAL |
| Basic Shape Style | CYLINDRICAL |
| Identification Designator | MCM677B-4.474MHZ-51774 MHz |
| Storage Temp Range | -65.0 TO 125.0 CELSIUS DEGC |
| Average Life Measurement | NOT RATED |
| Overall Gain | 60.0 MILLIAMPERES |
| Environmental Protection | SHOCK RESISTANT AND VIBRATION |
| Precious Material and Location | TERMINAL SURFACE GOLD |
| 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 |
|---|---|
| MCM677B-4.474MHZ | Q-Tech Corp Dba Q-Tech Corp (USA) |
| Reference | Meaning |
|---|---|
| 930726-2B | 3/2 Design control — primary reference U.S. Government activity |
| MCM677B | 5/1 Secondary reference Q-Tech Corp Dba Q-Tech Corp |
NSN 5955-01-153-7635 is a Oscillator,crystal Controlled, manufactured by Q-Tech Corp Dba Q-Tech Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-153-7635 has 1 manufacturer part number on file: MCM677B-4.474MHZ (Q-Tech Corp Dba Q-Tech Corp).
Key specifications for MCM677B-4.474MHZ: Circuit Construction Type: SOLID STATE; Inclosure Type: HERMETICALLY SEALED; Overall Diameter: 0.505 INCHES MAXIMUM IN; Precious Material: GOLD. 18 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 5955-01-153-7635 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.