PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1033-2Back-Up,sensor

Tescom Corp Dba Tescom Div Tescom · NSN 4820-01-121-1906 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-121-1906 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-121-1906. Primary manufacturer part number: 1033-2.
Features
  • Back-Up,sensor — FSC 4820
  • General Characteristics Item Description: STAINLESS STEEL
  • 3 verified cross-references
  • Primary manufacturer: Tescom Corp Dba Tescom Div Tescom
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Back-Up,sensor, cataloged under National Stock Number 4820-01-121-1906, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tescom Corp Dba Tescom Div Tescom. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-121-1906
Primary Part Number1033-2
Item NameBack-Up,sensor
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTescom Corp Dba Tescom Div Tescom
StatusACTIVE
General Characteristics Item DescriptionSTAINLESS STEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2825-00-148-184410332 INTERCHANGEABLE
Head
Northrop Grumman Systems Corporation Div Marine Systems
5310-00-269-4040 INTERCHANGEABLE
Nut,self-Locking,hexagon
5325-00-298-68390129-4 INTERCHANGEABLE
Grommet,nonmetallic
Lockheed Martin Corporation Div Rms
5995-00-302-7521SM-D-937438 INTERCHANGEABLE
Cord Assembly,electrical,branche
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3020-00-330-3832 INTERCHANGEABLE
Gear,bevel
3120-00-358-921810332 INTERCHANGEABLE
Bearing,washer,thrust
Mitsubishi Caterpillar Forklift America, Inc
5360-00-513-80661447-13 INTERCHANGEABLE
Spring,helical,compression
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
6515-00-515-211626-1000 INTERCHANGEABLE
Drill,flat,cranial
Aspen Surgical Products, Inc.
5360-00-591-1671 INTERCHANGEABLE
Spring,helical,compression
4920-00-626-513610332 INTERCHANGEABLE
Selector Valve Assy
Elbitamerica, Inc.
Cross-Reference Index
Part NumberManufacturer
26-1000 Tescom Corp Dba Tescom Div Tescom (USA)
1033-2 PRIMARY Tescom Corp Dba Tescom Div Tescom (USA)
26-1000 ASSY 1009-2 ITEM 3 Tescom Corp Dba Tescom Div Tescom (USA)
Related Parts
2825-00-148-1844INTERCHANGEABLE
HEAD
10332
5310-00-269-4040INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5325-00-298-6839INTERCHANGEABLE
GROMMET,NONMETALLIC
0129-4
5995-00-302-7521INTERCHANGEABLE
CORD ASSEMBLY,ELECTRICAL,BRANCHE
SM-D-937438
3020-00-330-3832INTERCHANGEABLE
GEAR,BEVEL
3120-00-358-9218INTERCHANGEABLE
BEARING,WASHER,THRUST
10332
5360-00-513-8066INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1447-13
6515-00-515-2116INTERCHANGEABLE
DRILL,FLAT,CRANIAL
26-1000
5360-00-591-1671INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4920-00-626-5136INTERCHANGEABLE
SELECTOR VALVE ASSY
10332
5340-00-652-9851INTERCHANGEABLE
BRACKET,DOUBLE ANGLE
SM-B-187433-2
5360-00-738-0340INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1033-2

Frequently Asked Questions

What is NSN 4820-01-121-1906?

NSN 4820-01-121-1906 is a Back-Up,sensor, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-121-1906?

NSN 4820-01-121-1906 has 3 cross-referenced part numbers: 26-1000 (Tescom Corp Dba Tescom Div Tescom), 1033-2 (Tescom Corp Dba Tescom Div Tescom), 26-1000 ASSY 1009-2 ITEM 3 (Tescom Corp Dba Tescom Div Tescom).

What NSN replaces 4820-01-121-1906?

There are 12 known substitutes for 4820-01-121-1906: 2825-00-148-1844, 5310-00-269-4040, 5325-00-298-6839 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1033-2?

Key specifications for 1033-2: General Characteristics Item Description: STAINLESS STEEL. 1 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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