PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3165785-1Tubing,nonmetallic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 4720-01-278-8677 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-278-8677 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-278-8677. Primary manufacturer part number: 3165785-1.
Features
  • Tubing,nonmetallic — FSC 4720
  • Specification/standard Data: 81349-MIL-P-21922 GOVERNMENT SPECIFICATION
  • Outside Diameter: 1.500 INCHES NOMINAL IN
  • Measuring Method and Length: 80.000 INCHES NOMINAL OVERALL IN
  • Inside Diameter: 1.250 INCHES NOMINAL IN
  • Flexibility: FLEXIBLE
  • Nondefinitive Spec/std Data: L CLASS AND B FORM AND I TYPE AND 1 GRADE
  • Inside Surface Condition: SMOOTH
Applications
  • Applications requiring Plastic, Polyethylene (pp) Tube construction
General Description

The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-278-8677, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN4720-01-278-8677
Primary Part Number3165785-1
Item NameTubing,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Specification/standard Data81349-MIL-P-21922 GOVERNMENT SPECIFICATION
Outside Diameter1.500 INCHES NOMINAL IN
Measuring Method and Length80.000 INCHES NOMINAL OVERALL IN
Inside Diameter1.250 INCHES NOMINAL IN
FlexibilityFLEXIBLE
Nondefinitive Spec/std DataL CLASS AND B FORM AND I TYPE AND 1 GRADE
Inside Surface ConditionSMOOTH
Cross-Sectional Shape StyleROUND
MaterialPLASTIC, POLYETHYLENE (PP) TUBE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4710-00-044-2990 INTERCHANGEABLE
Tubing,nonmetallic
4720-00-134-9095 INTERCHANGEABLE
Tubing,nonmetallic
4710-00-327-2861 INTERCHANGEABLE
Tubing,nonmetallic
4710-00-327-2864 INTERCHANGEABLE
Tubing,nonmetallic
4710-00-327-2866 INTERCHANGEABLE
Tubing,nonmetallic
4710-00-327-2868 INTERCHANGEABLE
Tubing,nonmetallic
4710-00-327-2873 INTERCHANGEABLE
Tubing,nonmetallic
4720-00-580-6055 INTERCHANGEABLE
Tubing,nonmetallic
4710-00-618-2638 INTERCHANGEABLE
Tubing,nonmetallic
4720-00-866-4612 INTERCHANGEABLE
Tubing,nonmetallic
Cross-Reference Index
Part NumberManufacturer
3165785-1 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
MIL-P-21922 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3165785 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
4710-00-044-2990INTERCHANGEABLE
TUBING,NONMETALLIC
4720-00-134-9095INTERCHANGEABLE
TUBING,NONMETALLIC
4710-00-327-2861INTERCHANGEABLE
TUBING,NONMETALLIC
4710-00-327-2864INTERCHANGEABLE
TUBING,NONMETALLIC
4710-00-327-2866INTERCHANGEABLE
TUBING,NONMETALLIC
4710-00-327-2868INTERCHANGEABLE
TUBING,NONMETALLIC
4710-00-327-2873INTERCHANGEABLE
TUBING,NONMETALLIC
4720-00-580-6055INTERCHANGEABLE
TUBING,NONMETALLIC
4710-00-618-2638INTERCHANGEABLE
TUBING,NONMETALLIC
4720-00-866-4612INTERCHANGEABLE
TUBING,NONMETALLIC
4720-01-064-8396INTERCHANGEABLE
TUBING,NONMETALLIC
5205473
9390-01-365-4225INTERCHANGEABLE
NONMETALLIC ROD
SK-P-768ITEMF5

Frequently Asked Questions

What is NSN 4720-01-278-8677?

NSN 4720-01-278-8677 is a Tubing,nonmetallic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-278-8677?

NSN 4720-01-278-8677 has 3 cross-referenced part numbers: 3165785-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MIL-P-21922 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3165785 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 4720-01-278-8677?

There are 12 known substitutes for 4720-01-278-8677: 4710-00-044-2990, 4720-00-134-9095, 4710-00-327-2861 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3165785-1?

Key specifications for 3165785-1: Specification/standard Data: 81349-MIL-P-21922 GOVERNMENT SPECIFICATION; Outside Diameter: 1.500 INCHES NOMINAL IN; Measuring Method and Length: 80.000 INCHES NOMINAL OVERALL IN; Inside Diameter: 1.250 INCHES NOMINAL IN. 9 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