PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NNNG00475Glass Tubing Assortment

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 6640-00-445-9250 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-445-9250 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-445-9250. Primary manufacturer part number: NNNG00475.
Features
  • Glass Tubing Assortment — FSC 6640
  • Nondefinitive Spec/std Data: II TYPE AND A VARIETY
  • 1 verified cross-reference
  • Primary manufacturer: Federal Specifications Promulgated by General Services Administration Washington DC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Glass Tubing Assortment, cataloged under National Stock Number 6640-00-445-9250, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-00-445-9250
Primary Part NumberNNNG00475
Item NameGlass Tubing Assortment
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Nondefinitive Spec/std DataII TYPE AND A VARIETY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6640-00-245-7129 INTERCHANGEABLE
Tubing,glass
6640-00-299-8690 INTERCHANGEABLE
Tubing,glass
6640-00-445-7750 INTERCHANGEABLE
Tubing,glass
6640-00-551-9805 INTERCHANGEABLE
Tubing,glass
6640-00-558-0292234110 INTERCHANGEABLE
Tubing,glass
Corning Glass Works
Cross-Reference Index
Part NumberManufacturer
NNNG00475 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
6640-00-245-7129INTERCHANGEABLE
TUBING,GLASS
6640-00-299-8690INTERCHANGEABLE
TUBING,GLASS
6640-00-445-7750INTERCHANGEABLE
TUBING,GLASS
6640-00-551-9805INTERCHANGEABLE
TUBING,GLASS
6640-00-558-0292INTERCHANGEABLE
TUBING,GLASS
234110

Frequently Asked Questions

What is NSN 6640-00-445-9250?

NSN 6640-00-445-9250 is a Glass Tubing Assortment, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-00-445-9250?

NSN 6640-00-445-9250 has 1 cross-referenced part number: NNNG00475 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 6640-00-445-9250?

There are 5 known substitutes for 6640-00-445-9250: 6640-00-245-7129, 6640-00-299-8690, 6640-00-445-7750 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NNNG00475?

Key specifications for NNNG00475: Nondefinitive Spec/std Data: II TYPE AND A VARIETY; Special Features: GLASS,SPEC DATA,FED,DD-G-541,TYPE II,0.0000093 LINEAR COEF OF EXPPER C DEG BETWEEN O DEG AND 300 DEG C,NOT ACID LEACHED GLASS;SIZE DATA,5,DIM.DATA,4 MM OD,30 IN.LG,0.75 MM THK WALL,10,DIM.DATA,6 MM OD,30 IN.LG,1.05 MM THK WALL,10,8 MM OD,30 IN.LG,1.10 MM THK WALL;NO SPECIAL FEATURES;PKG DATA,25,UNIT QTY,PKG,A/A MM; Part Name Assigned by Controlling Agency: GLASS TUBING ASSORTMENT FED DD-G-541 TYPE II 4MM OD 30"LG MM. 3 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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