PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

78-090Spectrograph

Fisher Scientific Co Jarrell-Ash Div · NSN 6650-01-004-1261 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-01-004-1261 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-004-1261. Primary manufacturer part number: 78-090.
Features
  • Spectrograph — FSC 6650
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY GRATING RULING
  • 1 verified cross-reference
  • Primary manufacturer: Fisher Scientific Co Jarrell-Ash Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Spectrograph, cataloged under National Stock Number 6650-01-004-1261, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Fisher Scientific Co Jarrell-Ash Div. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). 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
NSN6650-01-004-1261
Primary Part Number78-090
Item NameSpectrograph
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerFisher Scientific Co Jarrell-Ash Div
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY GRATING RULING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6130-00-141-003078090 INTERCHANGEABLE
Power Supply Subassembly
L3harris Technologies, Inc Div Space & Airborne Systems
5895-00-659-2166 INTERCHANGEABLE
Amplifier,third A,i
5895-00-908-4268 INTERCHANGEABLE
Amplifier,gyro
5331-00-933-0852 INTERCHANGEABLE
O-Ring
5963-01-178-404078090 R3A-3 INTERCHANGEABLE
Electronic Module,standardized
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5120-01-434-9853 INTERCHANGEABLE
Clamp,c
Cross-Reference Index
Part NumberManufacturer
78-090 Fisher Scientific Co Jarrell-Ash Div (USA)
Related Parts
6130-00-141-0030INTERCHANGEABLE
POWER SUPPLY SUBASSEMBLY
78090
5895-00-659-2166INTERCHANGEABLE
AMPLIFIER,THIRD A,I
5895-00-908-4268INTERCHANGEABLE
AMPLIFIER,GYRO
5331-00-933-0852INTERCHANGEABLE
O-RING
5963-01-178-4040INTERCHANGEABLE
ELECTRONIC MODULE,STANDARDIZED
78090 R3A-3
5120-01-434-9853INTERCHANGEABLE
CLAMP,C

Frequently Asked Questions

What is NSN 6650-01-004-1261?

NSN 6650-01-004-1261 is a Spectrograph, manufactured by Fisher Scientific Co Jarrell-Ash Div, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-004-1261?

NSN 6650-01-004-1261 has 1 cross-referenced part number: 78-090 (Fisher Scientific Co Jarrell-Ash Div).

What NSN replaces 6650-01-004-1261?

There are 6 known substitutes for 6650-01-004-1261: 6130-00-141-0030, 5895-00-659-2166, 5895-00-908-4268 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 78-090?

Key specifications for 78-090: Special Features: GRATING RULING 590 LINES/MM, WAVELENGTH FIRST ORDER 4200-9600A, SECOND ORDER 2100-4800A, THIRD ORDER 2100-3200 ANGSTROMS, RESOLUTION -1 ANGSTROM, PORTABLE UNIT A; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY GRATING RULING. 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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