PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5-850-3-8Clamp,tubing,regulating-Shutoff

Fisher Scientific Worldwide · NSN 6640-00-141-7259 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-141-7259 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-141-7259. Primary manufacturer part number: 5-850-3-8.
Features
  • Clamp,tubing,regulating-Shutoff — FSC 6640
  • Function for Which Designed: FLOW SHUTOFF
  • Nondefinitive Spec/std Data: 1 TYPE AND A CLASS AND 1 SIZE
  • Unit Type: PINCHCOCK
  • Tube Outside Diameter for Which Designed: 0.375 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Fisher Scientific Worldwide
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Clamp,tubing,regulating-Shutoff, cataloged under National Stock Number 6640-00-141-7259, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Fisher Scientific Worldwide. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6640-00-141-7259
Primary Part Number5-850-3-8
Item NameClamp,tubing,regulating-Shutoff
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerFisher Scientific Worldwide
StatusCANCELLED
Function for Which DesignedFLOW SHUTOFF
Nondefinitive Spec/std Data1 TYPE AND A CLASS AND 1 SIZE
Unit TypePINCHCOCK
Tube Outside Diameter for Which Designed0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4310-00-061-50685850 INTERCHANGEABLE
Ring,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5330-00-171-78337331898 INTERCHANGEABLE
Seal,plain Encased
U S Army Tank Automotive Command Amsta-Im-Mm
2805-00-362-2124005850 INTERCHANGEABLE
Plate,thrust
Caterpillar Inc Div Caterpillar Defense
6640-00-486-0235 INTERCHANGEABLE
Oven,laboratory
5935-00-732-8573712260-20 INTERCHANGEABLE
Connector,plug,electrical
Raytheon Company Div Rmd Strategic
2520-00-734-82057348205 INTERCHANGEABLE
Cover
U S Army Tank Automotive Command Amsta-Im-Mm
5935-00-814-64638176154 INTERCHANGEABLE
Adapter,connector
Us Army Aviation and Missile Command
5950-00-946-77477019479G001 INTERCHANGEABLE
Coil
Lockheed Martin Corporation Div Rms
5945-01-039-985272286 INTERCHANGEABLE
Solenoid,electrical
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
5950-01-118-00185850 INTERCHANGEABLE
Transformer,power
Sartron, Inc
Cross-Reference Index
Part NumberManufacturer
5-850-3-8 Fisher Scientific Worldwide (USA)
GGC418TYPE1CLASSASIZE1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
5-850 Fisher Scientific Company L.l.c. (USA)
5-850-3-8 Fisher Scientific Company L.l.c. (USA)
Related Parts
4310-00-061-5068INTERCHANGEABLE
RING,PISTON
5850
5330-00-171-7833INTERCHANGEABLE
SEAL,PLAIN ENCASED
7331898
2805-00-362-2124INTERCHANGEABLE
PLATE,THRUST
005850
6640-00-486-0235INTERCHANGEABLE
OVEN,LABORATORY
5935-00-732-8573INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
712260-20
2520-00-734-8205INTERCHANGEABLE
COVER
7348205
5935-00-814-6463INTERCHANGEABLE
ADAPTER,CONNECTOR
8176154
5950-00-946-7747INTERCHANGEABLE
COIL
7019479G001
5945-01-039-9852INTERCHANGEABLE
SOLENOID,ELECTRICAL
72286
5950-01-118-0018INTERCHANGEABLE
TRANSFORMER,POWER
5850
5310-01-341-4731INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
6105-01-369-0418INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
EM4409T

Frequently Asked Questions

What is NSN 6640-00-141-7259?

NSN 6640-00-141-7259 is a Clamp,tubing,regulating-Shutoff, manufactured by Fisher Scientific Worldwide, classified under FSC 6640 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6640-00-141-7259?

NSN 6640-00-141-7259 has 4 cross-referenced part numbers: 5-850-3-8 (Fisher Scientific Worldwide), GGC418TYPE1CLASSASIZE1 (Federal Specifications Promulgated by General Services Administration Washington DC), 5-850 (Fisher Scientific Company L.l.c.), 5-850-3-8 (Fisher Scientific Company L.l.c.).

What NSN replaces 6640-00-141-7259?

There are 12 known substitutes for 6640-00-141-7259: 4310-00-061-5068, 5330-00-171-7833, 2805-00-362-2124 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5-850-3-8?

Key specifications for 5-850-3-8: Special Features: DESIGN DESIGNATION-MOHR; Function for Which Designed: FLOW SHUTOFF; Nondefinitive Spec/std Data: 1 TYPE AND A CLASS AND 1 SIZE; Unit Type: PINCHCOCK. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6640-00-141-7259 still in active supply?

NSN 6640-00-141-7259 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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