PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2074Heater,blok,test Tu

Lab-Line Instruments Inc Div Barnsteadthermolyne Corp. · NSN 6640-01-354-3432 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-354-3432 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-354-3432. Primary manufacturer part number: 2074.
Features
  • Heater,blok,test Tu — FSC 6640
  • General Characteristics Item Description: BLOK HAS 8 HOLES; 13/16 IN. DIAM. FOR 20 MM. TUBES; SOLID BLACK ANODIZED ALUMINUM; 3 3/4 IN. LG; 2 15/16 IN. WIDE; 2 IN. HIGH MM
  • 1 verified cross-reference
  • Primary manufacturer: Lab-Line Instruments Inc Div Barnsteadthermolyne Corp.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,blok,test Tu, cataloged under National Stock Number 6640-01-354-3432, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lab-Line Instruments Inc Div Barnsteadthermolyne Corp.. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-01-354-3432
Primary Part Number2074
Item NameHeater,blok,test Tu
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerLab-Line Instruments Inc Div Barnsteadthermolyne Corp.
StatusACTIVE
General Characteristics Item DescriptionBLOK HAS 8 HOLES; 13/16 IN. DIAM. FOR 20 MM. TUBES; SOLID BLACK ANODIZED ALUMINUM; 3 3/4 IN. LG; 2 15/16 IN. WIDE; 2 IN. HIGH MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5970-00-045-36992074-28 INTERCHANGEABLE
Tape,insulation,electrical
Plymouth Rubber Co Inc
5330-00-131-7058 INTERCHANGEABLE
Seal,plain Encased
4310-00-166-5352207-4 INTERCHANGEABLE
Housing,vacuum Pump
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5310-00-187-186020-74 INTERCHANGEABLE
Washer,flat
Dresser Industries Inc Leroi Div
5977-00-325-6507B2074 INTERCHANGEABLE
Brush,electrical Contact
Kollmorgen Corp
5330-00-388-68332074 INTERCHANGEABLE
Packing Assembly
Northrop Grumman Systems Corporation Div Marine Systems
2540-00-401-83372074 INTERCHANGEABLE
Mirror Assembly,rearview
Chantilly Development Corporation Dba Acme Specialty Mfg Co Div Acme Specialty Mfg.
6105-00-542-79486309-01 INTERCHANGEABLE
Motor,alternating Current
Rotron Incorporated
5935-01-116-7441GP825ED1 INTERCHANGEABLE
Plug,tip
Northrop Grumman Systems Corporation
5930-01-129-40125580-2 INTERCHANGEABLE
Switch,thermostatic
Duke Mfg Co
Cross-Reference Index
Part NumberManufacturer
2074 PRIMARY Lab-Line Instruments Inc Div Barnsteadthermolyne Corp. (USA)
Related Parts
5970-00-045-3699INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
2074-28
5330-00-131-7058INTERCHANGEABLE
SEAL,PLAIN ENCASED
4310-00-166-5352INTERCHANGEABLE
HOUSING,VACUUM PUMP
207-4
5310-00-187-1860INTERCHANGEABLE
WASHER,FLAT
20-74
5977-00-325-6507INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
B2074
5330-00-388-6833INTERCHANGEABLE
PACKING ASSEMBLY
2074
2540-00-401-8337INTERCHANGEABLE
MIRROR ASSEMBLY,REARVIEW
2074
6105-00-542-7948INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
6309-01
5935-01-116-7441INTERCHANGEABLE
PLUG,TIP
GP825ED1
5930-01-129-4012INTERCHANGEABLE
SWITCH,THERMOSTATIC
5580-2
2920-01-140-6152INTERCHANGEABLE
SWITCH,LOCK,IGNITION
80601
5325-01-418-5911INTERCHANGEABLE
GROMMET,NONMETALLIC
2074

Frequently Asked Questions

What is NSN 6640-01-354-3432?

NSN 6640-01-354-3432 is a Heater,blok,test Tu, manufactured by Lab-Line Instruments Inc Div Barnsteadthermolyne Corp., classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-354-3432?

NSN 6640-01-354-3432 has 1 cross-referenced part number: 2074 (Lab-Line Instruments Inc Div Barnsteadthermolyne Corp.).

What NSN replaces 6640-01-354-3432?

There are 12 known substitutes for 6640-01-354-3432: 5970-00-045-3699, 5330-00-131-7058, 4310-00-166-5352 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2074?

Key specifications for 2074: General Characteristics Item Description: BLOK HAS 8 HOLES; 13/16 IN. DIAM. FOR 20 MM. TUBES; SOLID BLACK ANODIZED ALUMINUM; 3 3/4 IN. LG; 2 15/16 IN. WIDE; 2 IN. HIGH MM. 1 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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