PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21660Hose Assembly,nonmetallic

Penflex Inc · NSN 4720-01-434-7946 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-434-7946 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-434-7946. Primary manufacturer part number: 21660.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Layer Composition and Location: 1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
  • Inside Surface Condition: SMOOTH
  • Inside Diameter: 0.750 INCHES NOMINAL IN
  • Layer Composition and Location: OUTER LAYER SPIRALLY LAID STEEL WIRE
  • Cross-Sectional Shape Style: ROUND
  • 1 verified cross-reference
  • Primary manufacturer: Penflex Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-434-7946, 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 Penflex 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-434-7946
Primary Part Number21660
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerPenflex Inc
StatusACTIVE
Layer Composition and Location1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
Inside Surface ConditionSMOOTH
Inside Diameter0.750 INCHES NOMINAL IN
Layer Composition and LocationOUTER LAYER SPIRALLY LAID STEEL WIRE
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4320-00-163-107099121660 INTERCHANGEABLE
Pump,rotary
Alfa Laval Inc
6680-00-217-8673 INTERCHANGEABLE
Gage Rod,liquid Level
8145-00-300-426521160 INTERCHANGEABLE
Shipping and Storag
L3harris Technologies, Inc. Div Space and Airborne Systems
3805-00-447-357921660 INTERCHANGEABLE
Line Assembly
Komatsu America Corporation
5915-00-501-4554 INTERCHANGEABLE
Filter,radio Frequency Interfere
5360-01-171-607721660 INTERCHANGEABLE
Spring
Forenta Lp
5305-01-188-04895740572 INTERCHANGEABLE
Screw Assy.,vent
United States Energy Corporation Dba United States Energy Corp
6680-01-267-0590NW21660 INTERCHANGEABLE
Indicator,liquid Quantity
Tld Wollard Llc
5945-01-349-039321-660 INTERCHANGEABLE
Relay,solid State
Te Connectivity Corporation
4720-01-579-291821660 INTERCHANGEABLE
Hose Assembly,nonmetallic
Ritchie Engineering Co Inc
Cross-Reference Index
Part NumberManufacturer
21660 Penflex Inc (USA)
Related Parts
4320-00-163-1070INTERCHANGEABLE
PUMP,ROTARY
99121660
6680-00-217-8673INTERCHANGEABLE
GAGE ROD,LIQUID LEVEL
8145-00-300-4265INTERCHANGEABLE
SHIPPING AND STORAG
21160
3805-00-447-3579INTERCHANGEABLE
LINE ASSEMBLY
21660
5915-00-501-4554INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5360-01-171-6077INTERCHANGEABLE
SPRING
21660
5305-01-188-0489INTERCHANGEABLE
SCREW ASSY.,VENT
5740572
6680-01-267-0590INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
NW21660
5945-01-349-0393INTERCHANGEABLE
RELAY,SOLID STATE
21-660
4720-01-579-2918INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
21660

Frequently Asked Questions

What is NSN 4720-01-434-7946?

NSN 4720-01-434-7946 is a Hose Assembly,nonmetallic, manufactured by Penflex Inc, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-434-7946?

NSN 4720-01-434-7946 has 1 cross-referenced part number: 21660 (Penflex Inc).

What NSN replaces 4720-01-434-7946?

There are 10 known substitutes for 4720-01-434-7946: 4320-00-163-1070, 6680-00-217-8673, 8145-00-300-4265 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21660?

Key specifications for 21660: Layer Composition and Location: 1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE; Inside Surface Condition: SMOOTH; Inside Diameter: 0.750 INCHES NOMINAL IN; Layer Composition and Location: OUTER LAYER SPIRALLY LAID STEEL WIRE. 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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