PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D1-6Recorder,sound

Ricoh Americas Corporation · NSN 7450-00-581-2235 · FSC 7450 · No Item Name Available
Verified by PartsTable
NSN 7450-00-581-2235 — this item is cataloged by the U.S. Government under National Stock Number 7450-00-581-2235. Primary manufacturer part number: D1-6.
Features
  • Recorder,sound — FSC 7450
  • Input Impedance Rating in Ohms: 600.0
  • Electrical Power Source Relationship: OPERATING
  • Frequency Response Range in Hertz: +100.0 TO 6000.0
  • Recording Medium for Which Designed: DISK
  • Stylus Replaceability: NONREPLACEABLE
  • Outside Diameter: 5.875 INCHES NOMINAL IN
  • AC Voltage Rating: 105.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Recorder,sound, cataloged under National Stock Number 7450-00-581-2235, is classified within Federal Supply Class 7450 (No Item Name Available) of the Office Machines and Visible Record Equipment group. The primary manufacturer of record is Ricoh Americas Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN7450-00-581-2235
Primary Part NumberD1-6
Item NameRecorder,sound
FSC / FSG7450 / 74 — No Item Name Available
ManufacturerRicoh Americas Corporation
StatusACTIVE
Input Impedance Rating in Ohms600.0
Electrical Power Source RelationshipOPERATING
Frequency Response Range in Hertz+100.0 TO 6000.0
Recording Medium for Which DesignedDISK
Stylus ReplaceabilityNONREPLACEABLE
Outside Diameter5.875 INCHES NOMINAL IN
AC Voltage Rating105.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
Operating Speed at Rated Capacity6.000 INCHES PER MINUTE IN
Recording MethodELECTROMECHANICAL
Input Channel Quantity1
Frequency Response Tolerance in Decibels-10.0 TO 10.0
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
Frequency Rating60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4320-00-398-9340D16 INTERCHANGEABLE
Sleeve,shaft,pump
Circor Naval Solutions Llc Dba Warren Pumps
2920-00-540-83522689 INTERCHANGEABLE
Spark Plug
Champion Aerospace Llc
6665-00-542-1442D16 INTERCHANGEABLE
Indicator,combustible Gas,portab
Scott Instruments
Cross-Reference Index
Part NumberManufacturer
D1-6 PRIMARY Ricoh Americas Corporation (USA)
Related Parts
4320-00-398-9340INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
D16
2920-00-540-8352INTERCHANGEABLE
SPARK PLUG
2689
6665-00-542-1442INTERCHANGEABLE
INDICATOR,COMBUSTIBLE GAS,PORTAB
D16

Frequently Asked Questions

What is NSN 7450-00-581-2235?

NSN 7450-00-581-2235 is a Recorder,sound, manufactured by Ricoh Americas Corporation, classified under FSC 7450 (No Item Name Available). Status: active.

What are the part numbers for NSN 7450-00-581-2235?

NSN 7450-00-581-2235 has 1 cross-referenced part number: D1-6 (Ricoh Americas Corporation).

What NSN replaces 7450-00-581-2235?

There are 3 known substitutes for 7450-00-581-2235: 4320-00-398-9340, 2920-00-540-8352, 6665-00-542-1442. Verify interchangeability with system specifications before substitution.

What are the specifications of D1-6?

Key specifications for D1-6: Overall Width: 6.625 INCHES NOMINAL IN; Overall Height: 2.625 INCHES NOMINAL IN; Input Impedance Rating in Ohms: 600.0; Electrical Power Source Relationship: OPERATING. 16 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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