PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C00309Hose Assembly,metallic

Flex-Ing Products · NSN 4720-01-378-5138 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-378-5138 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-378-5138. Primary manufacturer part number: C00309.
Features
  • Hose Assembly,metallic — FSC 4720
  • Measuring Method and Length: 9.500 INCHES NOMINAL OVERALL IN
  • Cross-Sectional Shape Style: ROUND
  • Inside Diameter: 1.250 INCHES NOMINAL IN
  • Connection Type: UNTHREADED EXTERNAL HOSE FIRST END
  • 2 verified cross-references
  • Primary manufacturer: Flex-Ing Products
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,metallic, cataloged under National Stock Number 4720-01-378-5138, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Flex-Ing Products. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-378-5138
Primary Part NumberC00309
Item NameHose Assembly,metallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerFlex-Ing Products
StatusACTIVE
Measuring Method and Length9.500 INCHES NOMINAL OVERALL IN
Cross-Sectional Shape StyleROUND
Inside Diameter1.250 INCHES NOMINAL IN
Connection TypeUNTHREADED EXTERNAL HOSE FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5340-00-435-8633C00309 INTERCHANGEABLE
Clamp,loop
Kickhaefer Manufacturing Company, Llc Dba Kickhaefer Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
C00309 PRIMARY Flex-Ing Products (USA)
C00309 Tuboscope Vetco International Inc. Div Hydra Rig (USA)
Related Parts
5340-00-435-8633INTERCHANGEABLE
CLAMP,LOOP
C00309

Frequently Asked Questions

What is NSN 4720-01-378-5138?

NSN 4720-01-378-5138 is a Hose Assembly,metallic, manufactured by Flex-Ing Products, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-378-5138?

NSN 4720-01-378-5138 has 2 cross-referenced part numbers: C00309 (Flex-Ing Products), C00309 (Tuboscope Vetco International Inc. Div Hydra Rig).

What NSN replaces 4720-01-378-5138?

There is 1 known substitute for 4720-01-378-5138: 5340-00-435-8633. Verify interchangeability with system specifications before substitution.

What are the specifications of C00309?

Key specifications for C00309: Measuring Method and Length: 9.500 INCHES NOMINAL OVERALL IN; Cross-Sectional Shape Style: ROUND; Inside Diameter: 1.250 INCHES NOMINAL IN; Connection Type: UNTHREADED EXTERNAL HOSE FIRST END. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com