PartsTable TECHNICAL DATA SHEET
NSN 5845-01-699-9666Government record, cited

Hydrophone Assembly, Sonar5845-01-699-9666

NSN 5845-01-699-9666 · NIIN 016999666 · Part number COMPASSBIRD II
Ion Geophysical Corporation Dba Ion · FSC 5845 — Underwater Sound Equipment · FSG 58 — Communication, Detection, and Coherent Radiation Equipment · CAGE 55202
Government record, cited
NSN 5845-01-699-9666 — this item is cataloged by the U.S. Government under National Stock Number 5845-01-699-9666. Manufacturer of record part number: COMPASSBIRD II.
Also searched as  5845-01-699-9666 · 5845016999666 · NIIN 016999666 · 01-699-9666 · FSC 5845 Underwater Sound Equipment · CAGE 55202 · COMPASSBIRD II
Nearby stock numbers  ·
Features
  • Hydrophone Assembly,sonar — FSC 5845
  • Frequency at Which Impedance Rating Applies: 26.0 KILOHERTZ
  • 1 manufacturer part number on file
  • Manufacturer of record: Ion Geophysical Corporation Dba Ion
Identification
  • NSN: 5845-01-699-9666
  • NIIN: 016999666
  • FSC: 5845 — Underwater Sound Equipment
  • FSG: 58 — Communication, Detection, and Coherent Radiation Equipment
  • Primary part number: COMPASSBIRD II
  • Manufacturer: Ion Geophysical Corporation Dba Ion
General Description

The Hydrophone Assembly,sonar, cataloged under National Stock Number 5845-01-699-9666, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Ion Geophysical Corporation Dba Ion. Government technical data includes 1 specification, 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5845-01-699-9666
Primary Part NumberCOMPASSBIRD II
Item NameHydrophone Assembly,sonar
FSC / FSG5845 / 58 — Underwater Sound Equipment
ManufacturerIon Geophysical Corporation Dba Ion
StatusACTIVE
Frequency at Which Impedance Rating Applies26.0 KILOHERTZ
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
COMPASSBIRD II PRIMARY Ion Geophysical Corporation Dba Ion (USA)
No interchangeability data on file.
Other items in FSC 5845 — Underwater Sound Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5845-00-001-3622
5845-00-001-3622 · Item name not on file
5845-00-001-3623
5845-00-001-3623 · Item name not on file
5845-00-001-3625
DETECTING-RANGING SET SUBASSEMBL
5845-00-001-3627
5845-00-001-3627 · Item name not on file
5845-00-001-3628
5845-00-001-3628 · Item name not on file
5845-00-001-3629
5845-00-001-3629 · Item name not on file
5845-00-001-8053
5845-00-001-8053 · Item name not on file
5845-00-003-0332
5845-00-003-0332 · Item name not on file

Frequently Asked Questions

What is NSN 5845-01-699-9666?

NSN 5845-01-699-9666 is a Hydrophone Assembly,sonar, manufactured by Ion Geophysical Corporation Dba Ion, classified under FSC 5845, Underwater Sound Equipment. Status: active.

What part numbers are listed for NSN 5845-01-699-9666?

NSN 5845-01-699-9666 has 1 manufacturer part number on file: COMPASSBIRD II (Ion Geophysical Corporation Dba Ion).

What are the specifications of COMPASSBIRD II?

Key specifications for COMPASSBIRD II: Overall Length: 48.2 INCHES NOMINAL IN; Frequency at Which Impedance Rating Applies: 26.0 KILOHERTZ; Special Features: 0 TO 400 FOOT RANGE FT; Part Name Assigned by Controlling Agency: STREAMER DEPTH CONTROL. 1 specification is documented in the U.S. Government catalog.

Is NSN 5845-01-699-9666 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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