PartsTable TECHNICAL DATA SHEET

NSN 6660-01-481-8686Government record, cited

Detector, Wind Direction6660-01-481-8686

NSN 6660-01-481-8686 · NIIN 014818686 · Part number 425T-1

Vaisala Inc. Dba Hme Division · FSC 6660 — Meteorological Instruments and Apparatus · FSG 66 — Instruments and Laboratory Equipment · CAGE 1NJ14

Government record, cited

NSN 6660-01-481-8686 — this item is cataloged by the U.S. Government under National Stock Number 6660-01-481-8686. Manufacturer of record part number: 425T-1.

Also searched as 6660-01-481-8686 · 6660014818686 · NIIN 014818686 · 01-481-8686 · FSC 6660 Meteorological Instruments and Apparatus · CAGE 1NJ14 · 425T-1 · WS425 B4A3B · WAS425T-1 · WS425 B2A3A · WS425T-1 · WS425 B4A4A

Nearby stock numbers ← 6660-01-481-5314 Barometer, Aneroid · 6660-01-481-9261 Transducer Assembly, Sodar →

Features

Detector,wind Direction — FSC 6660
7 manufacturer part numbers on file
Manufacturer of record: Vaisala Inc. Dba Hme Division

Identification

NSN: 6660-01-481-8686
NIIN: 014818686
FSC: 6660 — Meteorological Instruments and Apparatus
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 425T-1
Manufacturer: Vaisala Inc. Dba Hme Division

General Description

The Detector,wind Direction, cataloged under National Stock Number 6660-01-481-8686, is classified within Federal Supply Class 6660 (Meteorological Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Vaisala Inc. Dba Hme Division. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	6660-01-481-8686
Primary Part Number	425T-1
Item Name	Detector,wind Direction
FSC / FSG	6660 / 66 — Meteorological Instruments and Apparatus
Manufacturer	Vaisala Inc. Dba Hme Division
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
WS425 B4A3B	Vaisala Inc (USA)
WAS425T-1	Vaisala Inc. Dba Hme Division (USA)
WS425 B2A3A	Vaisala Inc. Dba Hme Division (USA)
WS425T-1	Vaisala Inc. Dba Hme Division (USA)
WS425 B4A4A	Vaisala Inc. Dba Hme Division (USA)
WS425 B2D1A	Vaisala Inc. Dba Hme Division (USA)
425T-1 PRIMARY	Vaisala Inc. Dba Hme Division (USA)

No interchangeability data on file.

Other items in FSC 6660 — Meteorological Instruments and Apparatus

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

6660-00-001-4140

6660-00-001-4140 · Item name not on file

6660-00-003-0531

6660-00-003-0531 · Item name not on file

6660-00-003-2019

6660-00-003-2019 · Item name not on file

6660-00-003-8587

6660-00-003-8587 · Item name not on file

6660-00-004-3757

6660-00-004-3757 · Item name not on file

6660-00-004-3758

6660-00-004-3758 · Item name not on file

6660-00-004-3759

6660-00-004-3759 · Item name not on file

6660-00-004-3760

6660-00-004-3760 · Item name not on file

Frequently Asked Questions

What is NSN 6660-01-481-8686?

NSN 6660-01-481-8686 is a Detector,wind Direction, manufactured by Vaisala Inc. Dba Hme Division, classified under FSC 6660, Meteorological Instruments and Apparatus. Status: active.

What part numbers are listed for NSN 6660-01-481-8686?

NSN 6660-01-481-8686 has 7 manufacturer part numbers on file: WS425 B4A3B (Vaisala Inc), WAS425T-1 (Vaisala Inc. Dba Hme Division), WS425 B2A3A (Vaisala Inc. Dba Hme Division), WS425T-1 (Vaisala Inc. Dba Hme Division), WS425 B4A4A (Vaisala Inc. Dba Hme Division) and 2 more.

What are the specifications of 425T-1?

Key specifications for 425T-1: Special Features: ORIGINAL NAME ULTRASONIC WIND SENSOR;1A4A1, TI 6560.61A, INSTRUCTION BOOK, LLWAS, NE, PG 8-6 A; End Item Identification: LOW LEVEL WINDSHEAR ALERT SYSTEM,NETWORK EXPANSION (LLWAS-NE). 0 specifications are documented in the U.S. Government catalog.

Is NSN 6660-01-481-8686 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.

What is the DEMIL code for NSN 6660-01-481-8686?

NSN 6660-01-481-8686 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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