PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

343AGenerator,noise

Keysight Technologies Inc · NSN 6625-00-793-1344 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-793-1344 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-793-1344. Primary manufacturer part number: 343A.
Features
  • Generator,noise — FSC 6625
  • Functional Description: USED FOR IF AND RF AMPLIFIER NOISE MEASUREMENT
  • Functional Classification: AA-1.4
  • Reference Data and Literature: TECHNICAL MANUAL 17-20AG-86; HEWLETT PACKARD ELECTRONIC INSTRUMENTS ANDSYSTEM CATALOG P/N 343A A
  • Functional Description: USED FOR IF AND RF AMPLIFIER NOISE MEASUREMENT
  • Functional Classification: AA-1.4
  • Reference Data and Literature: TECHNICAL MANUAL 17-20AG-86; HEWLETT PACKARD ELECTRONIC INSTRUMENTS ANDSYSTEM CATALOG P/N 343A A
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Generator,noise, cataloged under National Stock Number 6625-00-793-1344, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Keysight Technologies Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-793-1344
Primary Part Number343A
Item NameGenerator,noise
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Functional DescriptionUSED FOR IF AND RF AMPLIFIER NOISE MEASUREMENT
Functional ClassificationAA-1.4
Reference Data and LiteratureTECHNICAL MANUAL 17-20AG-86; HEWLETT PACKARD ELECTRONIC INSTRUMENTS ANDSYSTEM CATALOG P/N 343A A
Functional DescriptionUSED FOR IF AND RF AMPLIFIER NOISE MEASUREMENT
Functional ClassificationAA-1.4
Reference Data and LiteratureTECHNICAL MANUAL 17-20AG-86; HEWLETT PACKARD ELECTRONIC INSTRUMENTS ANDSYSTEM CATALOG P/N 343A A
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-238-1283 (343A)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight1.0000 lbs
Cube0.0313 cu ft
Verified Substitutes 4
6625-00-238-1283343A SUCCESSOR
Calibrator,voltage
Fluke Corp
5961-00-027-9225343A INTERCHANGEABLE
Semiconductor Device,diode
Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp
6350-00-076-3315 INTERCHANGEABLE
Buzzer
5915-01-079-4699343A INTERCHANGEABLE
Filter,crystal
Magnetika Inc Div Magnetika/phillipsburg Location
Cross-Reference Index
Part NumberManufacturer
343A Hewlett-Packard Company Dba HP (USA)
SG978U Joint Electronics Type Designation System (USA)
343A PRIMARY Keysight Technologies Inc (USA)
343A Keysight Technologies, Inc. (USA)
Related Parts
SUCCESSOR 6625-00-238-1283 Calibrator,voltage · 343A
5961-00-027-9225INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
343A
6350-00-076-3315INTERCHANGEABLE
BUZZER
5915-01-079-4699INTERCHANGEABLE
FILTER,CRYSTAL
343A

Frequently Asked Questions

What is NSN 6625-00-793-1344?

NSN 6625-00-793-1344 is a Generator,noise, manufactured by Keysight Technologies Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-793-1344?

NSN 6625-00-793-1344 has 4 cross-referenced part numbers: 343A (Hewlett-Packard Company Dba HP), SG978U (Joint Electronics Type Designation System), 343A (Keysight Technologies Inc), 343A (Keysight Technologies, Inc.).

What NSN replaces 6625-00-793-1344?

There are 4 known substitutes for 6625-00-793-1344: 6625-00-238-1283, 5961-00-027-9225, 6350-00-076-3315 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 343A?

Key specifications for 343A: Functional Description: USED FOR IF AND RF AMPLIFIER NOISE MEASUREMENT; Functional Classification: AA-1.4; Reference Data and Literature: TECHNICAL MANUAL 17-20AG-86; HEWLETT PACKARD ELECTRONIC INSTRUMENTS ANDSYSTEM CATALOG P/N 343A A; Special Features: NAVY MANAGED ITEM;ENTRY DATE 73-02-01; FREQUENCY RANGE 10 TO 600 MHZ; EXCESS NOISE RATIO;: 10-30 MHZ,5.20 DB PORM 0.20 DB; 100 MHZ,5.50 DG PORM 0.25 DB; 200 MHZ. 5.80 DB PORM 0.30 DB; 300 MHZ,6.05 DB PORM 0.30 DB; 400 MHZ;6.30 DB PORM 0.50 DB; 500 MHZ,6.50 DB PORM 0.50 DB; 6.60 DB PORM 0.50 DB; SOURCE IMPEDANCE 50 OHMS; REFLECTION COEFFICIENT: LESS THAN 0.91(1.2 SWR),10 TO 400 MHZ; LESS THAN 0.13(1.3 SWR),400 TO 600 MHZ; NOISE GENERATOR: TEMPERATURE-LIMITED DIODE MHz. 8 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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