PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1551BSound Measuring Set

Genrad Inc · NSN 6625-00-893-0230 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-893-0230 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-893-0230. Primary manufacturer part number: 1551B.
Features
  • Sound Measuring Set — FSC 6625
  • 2 verified cross-references
  • Primary manufacturer: Genrad Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sound Measuring Set, cataloged under National Stock Number 6625-00-893-0230, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Genrad Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-893-0230
Primary Part Number1551B
Item NameSound Measuring Set
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerGenrad Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-720-86681551B INTERCHANGEABLE
Nut,plain,hexagon
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
6350-01-465-22581551B INTERCHANGEABLE
Alarm,smoke,automatic
Pittway Corp System Sensor Div
Cross-Reference Index
Part NumberManufacturer
1551B Genrad Inc (USA)
1551B Iet Labs Inc (USA)
Related Parts
5310-00-720-8668INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1551B
6350-01-465-2258INTERCHANGEABLE
ALARM,SMOKE,AUTOMATIC
1551B

Frequently Asked Questions

What is NSN 6625-00-893-0230?

NSN 6625-00-893-0230 is a Sound Measuring Set, manufactured by Genrad Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-893-0230?

NSN 6625-00-893-0230 has 2 cross-referenced part numbers: 1551B (Genrad Inc), 1551B (Iet Labs Inc).

What NSN replaces 6625-00-893-0230?

There are 2 known substitutes for 6625-00-893-0230: 5310-00-720-8668, 6350-01-465-2258. Verify interchangeability with system specifications before substitution.

What are the specifications of 1551B?

Key specifications for 1551B: Special Features: FREQ RANGE,20 HZ TO 20 KHZ W/2 DB RESPONSE OVER ENTIRE RANGE; DB CALIBRATION,FROM P 24 TO P 150 RANGE IN U,PORM 1 DB ACCURACY; INPUT 1 MICROPHONE 25 MEGO IMPEDANCE; OUTPUT 1 INDICATING METER; OPERATING PWR DC TWO 1.5 V SIZE D BATTERIES,ONE 67.5 V BATTERY; INT BATTERY SOURCE; MAJ COMPONENTS 1 EA PWR CORD GENL RADIO CO P/N CAP-11,TEL PLUG GENL RADIO CO TYPE 274 KHz; Special Features: FREQ RANGE,20 HZ TO 20 KHZ W/2 DB RESPONSE OVER ENTIRE RANGE; DB CALIBRATION,FROM P 24 TO P 150 RANGE IN U,PORM 1 DB ACCURACY; INPUT 1 MICROPHONE 25 MEGO IMPEDANCE; OUTPUT 1 INDICATING METER; OPERATING PWR DC TWO 1.5 V SIZE D BATTERIES,ONE 67.5 V BATTERY; INT BATTERY SOURCE; MAJ COMPONENTS 1 EA PWR CORD GENL RADIO CO P/N CAP-11,TEL PLUG GENL RADIO CO TYPE 274 KHz. 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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