PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PSB0020966Interface Unit,environmental Sen

General Dynamics Mission Systems, Inc. · NSN 5840-01-579-7784 · FSC 5840 · No Item Name Available
Verified by PartsTable
NSN 5840-01-579-7784 — this item is cataloged by the U.S. Government under National Stock Number 5840-01-579-7784. Primary manufacturer part number: PSB0020966.
Features
  • Interface Unit,environmental Sen — FSC 5840
  • Input Intelligence Type: AIR TEMPERATURE AND HUMIDITY
  • Direct Current Voltage Rating in Volts: 9.0
  • 2 verified cross-references
  • Primary manufacturer: General Dynamics Mission Systems, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Interface Unit,environmental Sen, cataloged under National Stock Number 5840-01-579-7784, is classified within Federal Supply Class 5840 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is General Dynamics Mission Systems, Inc.. Government technical data includes 2 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5840-01-579-7784
Primary Part NumberPSB0020966
Item NameInterface Unit,environmental Sen
FSC / FSG5840 / 58 — No Item Name Available
ManufacturerGeneral Dynamics Mission Systems, Inc.
StatusACTIVE
Input Intelligence TypeAIR TEMPERATURE AND HUMIDITY
Direct Current Voltage Rating in Volts9.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2990-01-136-7083EM1 INTERCHANGEABLE
Muffler,exhaust
Mosier Fluid Power of Ohio Inc Dba Kc Mosier Co
8415-01-344-8703EM-1 INTERCHANGEABLE
EAR Muffs,helmet
Sirchie Acquisition Co Llc
6530-01-470-4005EM-1 INTERCHANGEABLE
Head Cradle
Ems Innovations Inc.
3110-01-494-3086NJ2308E.M1 INTERCHANGEABLE
Bearing,roller,cylindrical
Gwilliam Company, Inc. Div Ball & Roller Bearing Division
4820-01-716-9083 INTERCHANGEABLE
Cock,poppet Drain
Cross-Reference Index
Part NumberManufacturer
PSB0020966 General Dynamics Mission Systems, Inc. (USA)
EM-1 Sensatronics, Llc (USA)
Related Parts
2990-01-136-7083INTERCHANGEABLE
MUFFLER,EXHAUST
EM1
8415-01-344-8703INTERCHANGEABLE
EAR MUFFS,HELMET
EM-1
6530-01-470-4005INTERCHANGEABLE
HEAD CRADLE
EM-1
3110-01-494-3086INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
NJ2308E.M1
4820-01-716-9083INTERCHANGEABLE
COCK,POPPET DRAIN

Frequently Asked Questions

What is NSN 5840-01-579-7784?

NSN 5840-01-579-7784 is a Interface Unit,environmental Sen, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 5840 (No Item Name Available). Status: active.

What are the part numbers for NSN 5840-01-579-7784?

NSN 5840-01-579-7784 has 2 cross-referenced part numbers: PSB0020966 (General Dynamics Mission Systems, Inc.), EM-1 (Sensatronics, Llc).

What NSN replaces 5840-01-579-7784?

There are 5 known substitutes for 5840-01-579-7784: 2990-01-136-7083, 8415-01-344-8703, 6530-01-470-4005 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PSB0020966?

Key specifications for PSB0020966: Part Name Assigned by Controlling Agency: ENVIRONMENTAL MONITOR; Input Intelligence Type: AIR TEMPERATURE AND HUMIDITY; Direct Current Voltage Rating in Volts: 9.0; End Item Identification: LOS ANGELES CLASS SSN (688). 4 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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