PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

581R128H01Switch,radio Frequency Transmiss

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5985-00-321-7640 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-321-7640 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-321-7640. Primary manufacturer part number: 581R128H01.
Features
  • Switch,radio Frequency Transmiss — FSC 5985
  • Precious Material: PLATINUM
  • Body Style: IRREGULAR
  • 5 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-00-321-7640, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-321-7640
Primary Part Number581R128H01
Item NameSwitch,radio Frequency Transmiss
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Precious MaterialPLATINUM
Body StyleIRREGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3030-00-001-7833AX65 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
Cross-Reference Index
Part NumberManufacturer
AX65 Litton Systems Inc Hyletronics Group-Airtron Div (USA)
581R128H01 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
CS1320 Emberguard Solutions (USA)
581R128H01 Marc Alan Group the, Inc (USA)
581R128H01 Robinson Laboratories Inc Dba Herley New England (USA)
Related Parts
3030-00-001-7833INTERCHANGEABLE
BELT,V
AX65

Frequently Asked Questions

What is NSN 5985-00-321-7640?

NSN 5985-00-321-7640 is a Switch,radio Frequency Transmiss, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-321-7640?

NSN 5985-00-321-7640 has 5 cross-referenced part numbers: AX65 (Litton Systems Inc Hyletronics Group-Airtron Div), 581R128H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), CS1320 (Emberguard Solutions), 581R128H01 (Marc Alan Group the, Inc), 581R128H01 (Robinson Laboratories Inc Dba Herley New England).

What NSN replaces 5985-00-321-7640?

There is 1 known substitute for 5985-00-321-7640: 3030-00-001-7833. Verify interchangeability with system specifications before substitution.

What are the specifications of 581R128H01?

Key specifications for 581R128H01: Overall Width: 1.500 INCHES NOMINAL IN; Precious Material: PLATINUM; Body Style: IRREGULAR; Overall Height: 0.500 INCHES NOMINAL IN. 5 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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