PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100657Radar Set Subassembly

Tensator Inc. · NSN 5840-01-420-3125 · FSC 5840 · No Item Name Available
Verified by PartsTable
NSN 5840-01-420-3125 — this item is cataloged by the U.S. Government under National Stock Number 5840-01-420-3125. Primary manufacturer part number: 100657.
Features
  • Radar Set Subassembly — FSC 5840
  • 3 verified cross-references
  • Primary manufacturer: Tensator Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Radar Set Subassembly, cataloged under National Stock Number 5840-01-420-3125, 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 Tensator Inc.. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5840-01-420-3125
Primary Part Number100657
Item NameRadar Set Subassembly
FSC / FSG5840 / 58 — No Item Name Available
ManufacturerTensator Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-00-174-4513107128 INTERCHANGEABLE
Cup,oil,lubricating
Am General Llc
5930-00-501-4770650376 INTERCHANGEABLE
Switch,pressure
Raytheon Company Dba Raytheon
5950-01-061-9826100657 INTERCHANGEABLE
Coil,radio Frequency
Logimetrics Inc
2040-01-617-509710-0657 INTERCHANGEABLE
Handle,door
Market Forge Industries Inc
Cross-Reference Index
Part NumberManufacturer
100657 Tensator Inc. (USA)
8280299-1 Lockheed Martin Corporation Div Rms (USA)
100657A Microsemi Corp. - Rf Signal Processing (USA)
Related Parts
4730-00-174-4513INTERCHANGEABLE
CUP,OIL,LUBRICATING
107128
5930-00-501-4770INTERCHANGEABLE
SWITCH,PRESSURE
650376
5950-01-061-9826INTERCHANGEABLE
COIL,RADIO FREQUENCY
100657
2040-01-617-5097INTERCHANGEABLE
HANDLE,DOOR
10-0657

Frequently Asked Questions

What is NSN 5840-01-420-3125?

NSN 5840-01-420-3125 is a Radar Set Subassembly, manufactured by Tensator Inc., classified under FSC 5840 (No Item Name Available). Status: active.

What are the part numbers for NSN 5840-01-420-3125?

NSN 5840-01-420-3125 has 3 cross-referenced part numbers: 100657 (Tensator Inc.), 8280299-1 (Lockheed Martin Corporation Div Rms), 100657A (Microsemi Corp. - Rf Signal Processing).

What NSN replaces 5840-01-420-3125?

There are 4 known substitutes for 5840-01-420-3125: 4730-00-174-4513, 5930-00-501-4770, 5950-01-061-9826 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100657?

Key specifications for 100657: End Item Identification: AN/MPS-39;MULTI-TRACKING RADAR SYSTEM; Special Features: PULSED COMP NETWORK. 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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