PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1A21013H02Baroswitch

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 6660-01-432-1871 · FSC 6660 · No Item Name Available
Verified by PartsTable
NSN 6660-01-432-1871 — this item is cataloged by the U.S. Government under National Stock Number 6660-01-432-1871. Primary manufacturer part number: 1A21013H02.
Features
  • Baroswitch — FSC 6660
  • 2 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Baroswitch, cataloged under National Stock Number 6660-01-432-1871, is classified within Federal Supply Class 6660 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6660-01-432-1871
Primary Part Number1A21013H02
Item NameBaroswitch
FSC / FSG6660 / 66 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5306-00-147-65157990 INTERCHANGEABLE
Bolt,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4930-00-222-10737216-4 INTERCHANGEABLE
Pump,lubricant Transfer
The Voto Manufacturers Sales Company Div Voto Manufacturers Sales Co, the
5995-00-258-82947990 INTERCHANGEABLE
Lead,electrical
Centroid, Inc. Dba Centroid Inc
5905-00-434-1686960602-2 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Raytheon Company Dba Raytheon
2520-00-494-01597349242 INTERCHANGEABLE
Shaft Drive Winch
U S Army Tank Automotive Command Amsta-Im-Mm
6625-00-772-6735 INTERCHANGEABLE
Voltmeter
5998-00-898-72577990 INTERCHANGEABLE
Printed Circuit Board
Drs Signal Solutions, Inc.
4820-01-278-87727990 PIECE 2 INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
4240-01-320-19537000126524 INTERCHANGEABLE
Faceshield,welder
3m Company
5360-01-573-53667990 INTERCHANGEABLE
Spring,helical,extension
O F Mossberg & Sons Inc
Cross-Reference Index
Part NumberManufacturer
7990 Qualimetrics Inc (USA)
1A21013H02 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5306-00-147-6515INTERCHANGEABLE
BOLT,MACHINE
7990
4930-00-222-1073INTERCHANGEABLE
PUMP,LUBRICANT TRANSFER
7216-4
5995-00-258-8294INTERCHANGEABLE
LEAD,ELECTRICAL
7990
5905-00-434-1686INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
960602-2
2520-00-494-0159INTERCHANGEABLE
SHAFT DRIVE WINCH
7349242
6625-00-772-6735INTERCHANGEABLE
VOLTMETER
5998-00-898-7257INTERCHANGEABLE
PRINTED CIRCUIT BOARD
7990
4820-01-278-8772INTERCHANGEABLE
DISK,VALVE
7990 PIECE 2
4240-01-320-1953INTERCHANGEABLE
FACESHIELD,WELDER
7000126524
5360-01-573-5366INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
7990
4240-01-614-7622INTERCHANGEABLE
FILTER,PARTICULATE
7990

Frequently Asked Questions

What is NSN 6660-01-432-1871?

NSN 6660-01-432-1871 is a Baroswitch, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 6660 (No Item Name Available). Status: active.

What are the part numbers for NSN 6660-01-432-1871?

NSN 6660-01-432-1871 has 2 cross-referenced part numbers: 7990 (Qualimetrics Inc), 1A21013H02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 6660-01-432-1871?

There are 11 known substitutes for 6660-01-432-1871: 5306-00-147-6515, 4930-00-222-1073, 5995-00-258-8294 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1A21013H02?

Key specifications for 1A21013H02: Special Features: FUNCTION: SENSOR, BAROMETRIC PRESSURE; REFERENCE DATA: 7A2, TI-6340.37, PG 8-3; ASSET MUST BE RETURNED IN THE SHIPPING CONTAINER PROVIDED WITH THE UNIT; End Item Identification: ARSR-4, FA-10313 WEATHER STATION (UNIT 7). 2 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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