PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40540Interface Unit,testing,communica

Acterna Llc Dba Jdsu · NSN 6625-01-547-3880 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-547-3880 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-547-3880. Primary manufacturer part number: 40540.
Features
  • Interface Unit,testing,communica — FSC 6625
  • 1 verified cross-reference
  • Primary manufacturer: Acterna Llc Dba Jdsu
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Interface Unit,testing,communica, cataloged under National Stock Number 6625-01-547-3880, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Acterna Llc Dba Jdsu. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-01-547-3880
Primary Part Number40540
Item NameInterface Unit,testing,communica
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerActerna Llc Dba Jdsu
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Weight2.0000 lbs
Cube0.1157 cu ft
Verified Substitutes 6
1315-00-028-4691 INTERCHANGEABLE
Cartridge,75 Millimeter
3455-00-189-91471-1561-0750 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
New York Twist Drill Inc
5950-00-331-75744592788 INTERCHANGEABLE
Reactor
Naval Ship Systems Command
2990-01-075-503240540 INTERCHANGEABLE
Pipe,exhaust
Walker Mfg Co
5133-01-460-173740540 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
6730-01-558-451740540 INTERCHANGEABLE
Screen,projection
Da-Lite Screen Company Inc.
Cross-Reference Index
Part NumberManufacturer
40540 PRIMARY Acterna Llc Dba Jdsu (USA)
Related Parts
1315-00-028-4691INTERCHANGEABLE
CARTRIDGE,75 MILLIMETER
3455-00-189-9147INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
1-1561-0750
5950-00-331-7574INTERCHANGEABLE
REACTOR
4592788
2990-01-075-5032INTERCHANGEABLE
PIPE,EXHAUST
40540
5133-01-460-1737INTERCHANGEABLE
DRILL,TWIST
40540
6730-01-558-4517INTERCHANGEABLE
SCREEN,PROJECTION
40540

Frequently Asked Questions

What is NSN 6625-01-547-3880?

NSN 6625-01-547-3880 is a Interface Unit,testing,communica, manufactured by Acterna Llc Dba Jdsu, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-547-3880?

NSN 6625-01-547-3880 has 1 cross-referenced part number: 40540 (Acterna Llc Dba Jdsu).

What NSN replaces 6625-01-547-3880?

There are 6 known substitutes for 6625-01-547-3880: 1315-00-028-4691, 3455-00-189-9147, 5950-00-331-7574 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40540?

Key specifications for 40540: Special Features: ALLOWS A FIREBERD MAINFRAME TO TEST COMMUNICATIONS SYSTEMS THAT MEET BELL SYSTEM TI DIGITAL CHANNEL SERVICE SPECIFICATIONS; CAN TRANSMIT EITHER LOOP-UP OR LOOP-DOWN CODES; CAN OPERATE IN AN EXTENDED SUPERFRAME; Special Features: ALLOWS A FIREBERD MAINFRAME TO TEST COMMUNICATIONS SYSTEMS THAT MEET BELL SYSTEM TI DIGITAL CHANNEL SERVICE SPECIFICATIONS; CAN TRANSMIT EITHER LOOP-UP OR LOOP-DOWN CODES; CAN OPERATE IN AN EXTENDED SUPERFRAME. 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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