PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12B 1/2ID 50 FT LGHose,nonmetallic

Gates Corporation · NSN 4720-00-278-1114 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-278-1114 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-278-1114. Primary manufacturer part number: 12B 1/2ID 50 FT LG.
Features
  • Hose,nonmetallic — FSC 4720
  • Outside Diameter: 1.062 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN
  • Temp Rating: 338.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Outer Covering Environmental Protection: OIL RESISTANT AND WATER RESISTANT
  • Measuring Method and Length: 600.000 INCHES NOMINAL OVERALL IN
  • Inside Surface Condition: SMOOTH
  • Material: RUBBER SYNTHETIC TUBE
  • Operating Pressure: 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Rubber Synthetic Tube construction
General Description

The Hose,nonmetallic, cataloged under National Stock Number 4720-00-278-1114, 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 Gates Corporation. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN4720-00-278-1114
Primary Part Number12B 1/2ID 50 FT LG
Item NameHose,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerGates Corporation
StatusCANCELLED
Outside Diameter1.062 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN
Temp Rating338.0 FAHRENHEIT SINGLE RESPONSE DEGF
Outer Covering Environmental ProtectionOIL RESISTANT AND WATER RESISTANT
Measuring Method and Length600.000 INCHES NOMINAL OVERALL IN
Inside Surface ConditionSMOOTH
MaterialRUBBER SYNTHETIC TUBE
Operating Pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedSTEAM SINGLE RESPONSE
Cross-Sectional Shape StyleROUND
Inside Diameter0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
Layer Composition and Location1ST LAYER BRAIDED SYNTHETIC CORD AND 2ND LAYER BRAIDED SYNTHETIC CORD AND 3RD LAYER RUBBER IMPREGNATED FABRIC AND 4TH LAYER RUBBER IMPREGNATED FABRIC AND 5TH LAYER BRAIDED COTTON CORD AND OUTER LAYER MOLDED RUBBER, NEOPRENE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3030-00-160-8280A21 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5360-00-200-94744152 INTERCHANGEABLE
Spring,helical,compression
Meggitt North Hollywood Inc
3010-00-289-7070415-2 INTERCHANGEABLE
Coupling,shaft,flexible
Pax Mfg Corp Hammarlund Mfg Co Div
4820-00-343-6973010.500.0084 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5305-00-349-81744152 INTERCHANGEABLE
Screw,wheel Pillar
Wakmann Watch Company Inc
4820-00-369-3009340-4801-1000967PCD3 INTERCHANGEABLE
Disk,valve
Naval Ship Systems Command
5950-00-645-1972146-92-1 INTERCHANGEABLE
Transformer,audio Frequency
Kearfott Corporation Div Guidance and Navigation Division
1660-00-927-1996 INTERCHANGEABLE
Regulator,oxygen,demand
4820-00-937-5486 INTERCHANGEABLE
Diaphragm,valve,flat
5905-00-958-9260 INTERCHANGEABLE
Resistor,thermal
Cross-Reference Index
Part NumberManufacturer
12B-1/2 Gates Corporation (USA)
A21 Sioux Corporation Dba Sioux Corp (USA)
12WB Gates Corporation (USA)
7305-505 Parker-Hannifin Corporation Dba Industrial Hose Product Division Div Hose Products Division (USA)
4152 Gates Corporation (USA)
9A21 Dgm Electronics Inc (USA)
12B 1/2ID 50 FT LG PRIMARY Gates Corporation (USA)
Related Parts
3030-00-160-8280INTERCHANGEABLE
BELT,V
A21
5360-00-200-9474INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4152
3010-00-289-7070INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
415-2
4820-00-343-6973INTERCHANGEABLE
SEAT,VALVE
010.500.0084
5305-00-349-8174INTERCHANGEABLE
SCREW,WHEEL PILLAR
4152
4820-00-369-3009INTERCHANGEABLE
DISK,VALVE
340-4801-1000967PCD3
5950-00-645-1972INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
146-92-1
1660-00-927-1996INTERCHANGEABLE
REGULATOR,OXYGEN,DEMAND
4820-00-937-5486INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
5905-00-958-9260INTERCHANGEABLE
RESISTOR,THERMAL
4730-00-997-2247INTERCHANGEABLE
CLAMP,HOSE
A21
4310-01-021-1589INTERCHANGEABLE
PIN,PISTON
A21

Frequently Asked Questions

What is NSN 4720-00-278-1114?

NSN 4720-00-278-1114 is a Hose,nonmetallic, manufactured by Gates Corporation, classified under FSC 4720 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4720-00-278-1114?

NSN 4720-00-278-1114 has 7 cross-referenced part numbers: 12B-1/2 (Gates Corporation), A21 (Sioux Corporation Dba Sioux Corp), 12WB (Gates Corporation), 7305-505 (Parker-Hannifin Corporation Dba Industrial Hose Product Division Div Hose Products Division), 4152 (Gates Corporation) and 2 more.

What NSN replaces 4720-00-278-1114?

There are 12 known substitutes for 4720-00-278-1114: 3030-00-160-8280, 5360-00-200-9474, 3010-00-289-7070 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12B 1/2ID 50 FT LG?

Key specifications for 12B 1/2ID 50 FT LG: Outside Diameter: 1.062 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN; Temp Rating: 338.0 FAHRENHEIT SINGLE RESPONSE DEGF; Outer Covering Environmental Protection: OIL RESISTANT AND WATER RESISTANT; Measuring Method and Length: 600.000 INCHES NOMINAL OVERALL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4720-00-278-1114 still in active supply?

NSN 4720-00-278-1114 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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