PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2127/04Test Set,optical Power

Viavi Solutions Inc. Div Communications Test · NSN 6650-01-678-8685 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-01-678-8685 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-678-8685. Primary manufacturer part number: 2127/04.
Features
  • Test Set,optical Power — FSC 6650
  • 2 verified cross-references
  • Primary manufacturer: Viavi Solutions Inc. Div Communications Test
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Test Set,optical Power, cataloged under National Stock Number 6650-01-678-8685, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Viavi Solutions Inc. Div Communications Test. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-678-8685
Primary Part Number2127/04
Item NameTest Set,optical Power
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerViavi Solutions Inc. Div Communications Test
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-026-259720-99 INTERCHANGEABLE
Screw,tapping
Motorola Automotive Electronics
5315-00-141-6917209-9 INTERCHANGEABLE
Pin,straight,headless
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
2805-00-148-6776S-2695 INTERCHANGEABLE
Valve,poppet,engine
Eaton Corp Dba Eaton Aerospace Jackson
6810-00-236-5362 INTERCHANGEABLE
Potassium Bromate
5950-00-244-3685 INTERCHANGEABLE
Transformer,audio Frequency
5935-00-321-49992099 INTERCHANGEABLE
Cover,telephone Jack
Entron Industries Limited Partnership Dba Entron Industries Property Div
5935-00-416-6575 INTERCHANGEABLE
Connector Assembly,electrical
5935-00-419-55612099 INTERCHANGEABLE
Adapter,connector
Fluke Electronics Corp
4310-00-467-9939 INTERCHANGEABLE
Yoke,ball End Box
5330-00-618-3448 INTERCHANGEABLE
Seal,plain Encased
Cross-Reference Index
Part NumberManufacturer
2127/04 PRIMARY Viavi Solutions Inc. Div Communications Test (USA)
2099 Itni (FRA)
Related Parts
5305-00-026-2597INTERCHANGEABLE
SCREW,TAPPING
20-99
5315-00-141-6917INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
209-9
2805-00-148-6776INTERCHANGEABLE
VALVE,POPPET,ENGINE
S-2695
6810-00-236-5362INTERCHANGEABLE
POTASSIUM BROMATE
5950-00-244-3685INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5935-00-321-4999INTERCHANGEABLE
COVER,TELEPHONE JACK
2099
5935-00-416-6575INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
5935-00-419-5561INTERCHANGEABLE
ADAPTER,CONNECTOR
2099
4310-00-467-9939INTERCHANGEABLE
YOKE,BALL END BOX
5330-00-618-3448INTERCHANGEABLE
SEAL,PLAIN ENCASED
2530-01-093-4142INTERCHANGEABLE
BELL CRANK ASSEMBLY
2099
5950-01-112-9270INTERCHANGEABLE
TRANSFORMER,POWER
2099

Frequently Asked Questions

What is NSN 6650-01-678-8685?

NSN 6650-01-678-8685 is a Test Set,optical Power, manufactured by Viavi Solutions Inc. Div Communications Test, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-678-8685?

NSN 6650-01-678-8685 has 2 cross-referenced part numbers: 2127/04 (Viavi Solutions Inc. Div Communications Test), 2099 (Itni).

What NSN replaces 6650-01-678-8685?

There are 12 known substitutes for 6650-01-678-8685: 5305-00-026-2597, 5315-00-141-6917, 2805-00-148-6776 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2127/04?

Key specifications for 2127/04: Part Name Assigned by Controlling Agency: OMK-36P ENTERPRISE PLUS-QUAD TEST KIT; Special Features: A QUAD-WAVELENGTH OPTICAL TEST KIT WITH A DUAL-PORT LIGHT SOURCE (OLS-36) AND A POWER METER WITH A UPP INTERFACE (OLP-35) FOR SINGLE-MODE AND MULTIMODE POWER AND LOSS MEASUREMENT.INCLUDES COMPLETE TEST KIT FOR LOSS TESTING AT 850/1300 NM ON MULTIMODE FIBERS AND 1310/1550 NM ON SINGLE-MODE FIBERS.. 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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