PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2637Tubing,glass

Smith H B Co Inc · NSN 9340-01-128-4594 · FSC 9340 · No Item Name Available
Verified by PartsTable
NSN 9340-01-128-4594 — this item is cataloged by the U.S. Government under National Stock Number 9340-01-128-4594. Primary manufacturer part number: 2637.
Features
  • Tubing,glass — FSC 9340
  • Material: GLASS
  • Style Designator: TUBING
  • Environmental Protection: HIGH TEMPERATURE RESISTANT
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Material Transparency: CLEAR
  • 1 verified cross-reference
  • Primary manufacturer: Smith H B Co Inc
Applications
  • Applications requiring Glass construction
General Description

The Tubing,glass, cataloged under National Stock Number 9340-01-128-4594, is classified within Federal Supply Class 9340 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Smith H B Co Inc. Government technical data includes 5 verified specifications, 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
NSN9340-01-128-4594
Primary Part Number2637
Item NameTubing,glass
FSC / FSG9340 / 93 — No Item Name Available
ManufacturerSmith H B Co Inc
StatusACTIVE
MaterialGLASS
Style DesignatorTUBING
Environmental ProtectionHIGH TEMPERATURE RESISTANT
Overall Diameter0.625 INCHES NOMINAL IN
Material TransparencyCLEAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1650-00-564-8292263-7 INTERCHANGEABLE
Spring,helical,comp
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5340-01-078-15052637 INTERCHANGEABLE
Cap,protective,dust and Moisture
Crown Audio, Inc. Dba Crown International
2940-01-116-752242637 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5975-01-353-96972637 INTERCHANGEABLE
Box Connector,electrical
Thomas and Betts Corp Electronics Group
6110-01-373-2234 INTERCHANGEABLE
Contactor,magnetic
5340-01-467-47142637 INTERCHANGEABLE
Cap,protective,dust and Moisture
Heyco Inc Dba Heyco Products
Cross-Reference Index
Part NumberManufacturer
2637 Smith H B Co Inc (USA)
Related Parts
1650-00-564-8292INTERCHANGEABLE
SPRING,HELICAL,COMP
263-7
5340-01-078-1505INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
2637
2940-01-116-7522INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42637
5975-01-353-9697INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2637
6110-01-373-2234INTERCHANGEABLE
CONTACTOR,MAGNETIC
5340-01-467-4714INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
2637

Frequently Asked Questions

What is NSN 9340-01-128-4594?

NSN 9340-01-128-4594 is a Tubing,glass, manufactured by Smith H B Co Inc, classified under FSC 9340 (No Item Name Available). Status: active.

What are the part numbers for NSN 9340-01-128-4594?

NSN 9340-01-128-4594 has 1 cross-referenced part number: 2637 (Smith H B Co Inc).

What NSN replaces 9340-01-128-4594?

There are 6 known substitutes for 9340-01-128-4594: 1650-00-564-8292, 5340-01-078-1505, 2940-01-116-7522 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2637?

Key specifications for 2637: Material: GLASS; Style Designator: TUBING; Environmental Protection: HIGH TEMPERATURE RESISTANT; Overall Length: 9.875 INCHES NOMINAL IN. 6 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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