PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

102804390Test Set,telephone

American Telephone and Telegraph Co · NSN 6625-01-126-7738 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-126-7738 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-126-7738. Primary manufacturer part number: 102804390.
Features
  • Test Set,telephone — FSC 6625
  • Test Type for Which Designed: FREQUENCY
  • Height: 2.250 INCHES NOMINAL IN
  • Enclosure Feature: SINGLE ITEM W/HOUSING
  • Length: 5.500 INCHES NOMINAL IN
  • Depth: 1.000 INCHES NOMINAL IN
  • Test Type for Which Designed: FREQUENCY
  • Height: 2.250 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Test Set,telephone, cataloged under National Stock Number 6625-01-126-7738, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is American Telephone and Telegraph Co. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-126-7738
Primary Part Number102804390
Item NameTest Set,telephone
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerAmerican Telephone and Telegraph Co
StatusACTIVE
Test Type for Which DesignedFREQUENCY
Height2.250 INCHES NOMINAL IN
Enclosure FeatureSINGLE ITEM W/HOUSING
Length5.500 INCHES NOMINAL IN
Depth1.000 INCHES NOMINAL IN
Test Type for Which DesignedFREQUENCY
Height2.250 INCHES NOMINAL IN
Enclosure FeatureSINGLE ITEM W/HOUSING
Length5.500 INCHES NOMINAL IN
Depth1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.7000 lbs
Cube0.0451 cu ft
Verified Substitutes 2
3110-00-100-07542984 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5120-01-470-9028139C INTERCHANGEABLE
Wrench,pipe,internal Gripping
General Tools Manufacturing Co., Llc.
Cross-Reference Index
Part NumberManufacturer
102804390 American Telephone and Telegraph Co (USA)
102804390 Lucent Technologies Inc Dba Federal Marketing Group (USA)
MT-139 Lucent Technologies Inc Advanced Technology Systems (USA)
139C American Telephone and Telegraph Co (USA)
139BW American Telephone and Telegraph Co (USA)
600LS Progressive Electronics Inc (USA)
Related Parts
3110-00-100-0754INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2984
5120-01-470-9028INTERCHANGEABLE
WRENCH,PIPE,INTERNAL GRIPPING
139C

Frequently Asked Questions

What is NSN 6625-01-126-7738?

NSN 6625-01-126-7738 is a Test Set,telephone, manufactured by American Telephone and Telegraph Co, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-126-7738?

NSN 6625-01-126-7738 has 6 cross-referenced part numbers: 102804390 (American Telephone and Telegraph Co), 102804390 (Lucent Technologies Inc Dba Federal Marketing Group), MT-139 (Lucent Technologies Inc Advanced Technology Systems), 139C (American Telephone and Telegraph Co), 139BW (American Telephone and Telegraph Co) and 1 more.

What NSN replaces 6625-01-126-7738?

There are 2 known substitutes for 6625-01-126-7738: 3110-00-100-0754, 5120-01-470-9028. Verify interchangeability with system specifications before substitution.

What are the specifications of 102804390?

Key specifications for 102804390: Test Type for Which Designed: FREQUENCY; Height: 2.250 INCHES NOMINAL IN; Enclosure Feature: SINGLE ITEM W/HOUSING; Length: 5.500 INCHES NOMINAL IN. 10 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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