PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

627638Oscillator,crystal Controlled

Raytheon Company · NSN 5955-01-327-9195 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-327-9195 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-327-9195. Primary manufacturer part number: 627638.
Features
  • Oscillator,crystal Controlled — FSC 5955
  • Operating Control Method: AUTOMATIC
  • External DC Operating Voltage in Volts: 12.0 NOMINAL SINGLE VOLTAGE
  • Circuit Construction Type: SOLID STATE
  • Connection Contact Type and Quantity: 6 PIN EXTERNAL
  • Connection Type: PIN BOTTOM
  • Frequency Per Channel: 4.0 MEGAHERTZ NOMINAL OPERATING CHANNEL
  • Installation Design: MODULE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-327-9195, is classified within Federal Supply Class 5955 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raytheon Company. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-327-9195
Primary Part Number627638
Item NameOscillator,crystal Controlled
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerRaytheon Company
StatusACTIVE
Operating Control MethodAUTOMATIC
External DC Operating Voltage in Volts12.0 NOMINAL SINGLE VOLTAGE
Circuit Construction TypeSOLID STATE
Connection Contact Type and Quantity6 PIN EXTERNAL
Connection TypePIN BOTTOM
Frequency Per Channel4.0 MEGAHERTZ NOMINAL OPERATING CHANNEL
Installation DesignMODULE
Control TypeREMOTE
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Maximum Operating Altitude Rating70000.0 FEET FT
Inclosure TypeENCASED
Average Life MeasurementNOT RATED
Basic Shape StyleRECTANGULAR OR SQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5977-00-247-5358 INTERCHANGEABLE
Brush,electrical Contact
5315-00-466-2761627638 INTERCHANGEABLE
Pin,straight,headed
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Cross-Reference Index
Part NumberManufacturer
627638 PRIMARY Raytheon Company (USA)
252-9052 Vectron International Div. of Dover Electronics Inc (USA)
Related Parts
5977-00-247-5358INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5315-00-466-2761INTERCHANGEABLE
PIN,STRAIGHT,HEADED
627638

Frequently Asked Questions

What is NSN 5955-01-327-9195?

NSN 5955-01-327-9195 is a Oscillator,crystal Controlled, manufactured by Raytheon Company, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-327-9195?

NSN 5955-01-327-9195 has 2 cross-referenced part numbers: 627638 (Raytheon Company), 252-9052 (Vectron International Div. of Dover Electronics Inc).

What NSN replaces 5955-01-327-9195?

There are 2 known substitutes for 5955-01-327-9195: 5977-00-247-5358, 5315-00-466-2761. Verify interchangeability with system specifications before substitution.

What are the specifications of 627638?

Key specifications for 627638: Operating Control Method: AUTOMATIC; End Item Identification: RADIO SET AN/ARC-187; Overall Length: 1.500 INCHES MAXIMUM IN; External DC Operating Voltage in Volts: 12.0 NOMINAL SINGLE VOLTAGE. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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