PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS521304B305RHose,nonmetallic

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4720-00-349-9103 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-349-9103 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-349-9103. Primary manufacturer part number: MS521304B305R.
Features
  • Hose,nonmetallic — FSC 4720
  • Outside Diameter: 1.312 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 4 TYPE AND B GRADE AND 3 CLASS
  • Specification/standard Data: 81348-ZZ-H-428 GOVERNMENT SPECIFICATION AND 96906-MS52130 GOVERNMENT STANDARD
  • Inside Surface Condition: SMOOTH
  • Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM TUBE
  • Burst Test Pressure: 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
  • Layer Composition and Location: 1ST LAYER BRAIDED TEXTILE YARN AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Rubber Ethylene-Propylene Class Epm Tube construction
General Description

The Hose,nonmetallic, cataloged under National Stock Number 4720-00-349-9103, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4720-00-349-9103
Primary Part NumberMS521304B305R
Item NameHose,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Outside Diameter1.312 INCHES NOMINAL IN
Nondefinitive Spec/std Data4 TYPE AND B GRADE AND 3 CLASS
Specification/standard Data81348-ZZ-H-428 GOVERNMENT SPECIFICATION AND 96906-MS52130 GOVERNMENT STANDARD
Inside Surface ConditionSMOOTH
MaterialRUBBER ETHYLENE-PROPYLENE CLASS EPM TUBE
Burst Test Pressure300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
Layer Composition and Location1ST LAYER BRAIDED TEXTILE YARN AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
Inside Diameter0.875 INCHES NOMINAL IN
Cross-Sectional Shape StyleROUND
Temp Rating-40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
9540-00-145-8143 INTERCHANGEABLE
Angle,structural
5325-00-174-28602174 INTERCHANGEABLE
Grommet,nonmetallic
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5310-00-204-5329 INTERCHANGEABLE
Washer,lock
6145-00-220-9660 INTERCHANGEABLE
Braid,wire
5120-00-221-1150217-4 INTERCHANGEABLE
Punch and Die,grommet Inserting
C. S. Osborne and Company Dba Cs Osborne & Co
5305-00-350-41232-175 INTERCHANGEABLE
Screw,machine
Precision Aerospace Corporation Dba Precision Engine Control
5835-00-411-6342 INTERCHANGEABLE
Head,magnetic
5331-00-425-32472-174N674-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
9540-00-517-1393 INTERCHANGEABLE
Angle,structural
5975-00-518-4450 INTERCHANGEABLE
Adapter,electrical Conduit
Cross-Reference Index
Part NumberManufacturer
MS521304B305R Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
ZZ-H-428 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
6L3207 Caterpillar Inc Div Caterpillar Defense (USA)
2174 Flexfab Llc (USA)
Related Parts
9540-00-145-8143INTERCHANGEABLE
ANGLE,STRUCTURAL
5325-00-174-2860INTERCHANGEABLE
GROMMET,NONMETALLIC
2174
5310-00-204-5329INTERCHANGEABLE
WASHER,LOCK
6145-00-220-9660INTERCHANGEABLE
BRAID,WIRE
5120-00-221-1150INTERCHANGEABLE
PUNCH AND DIE,GROMMET INSERTING
217-4
5305-00-350-4123INTERCHANGEABLE
SCREW,MACHINE
2-175
5835-00-411-6342INTERCHANGEABLE
HEAD,MAGNETIC
5331-00-425-3247INTERCHANGEABLE
O-RING
2-174N674-70
9540-00-517-1393INTERCHANGEABLE
ANGLE,STRUCTURAL
5975-00-518-4450INTERCHANGEABLE
ADAPTER,ELECTRICAL CONDUIT
5910-00-626-0132INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
5360-00-630-6309INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
2174

Frequently Asked Questions

What is NSN 4720-00-349-9103?

NSN 4720-00-349-9103 is a Hose,nonmetallic, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4720 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4720-00-349-9103?

NSN 4720-00-349-9103 has 4 cross-referenced part numbers: MS521304B305R (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), ZZ-H-428 (Federal Specifications Promulgated by General Services Administration Washington DC), 6L3207 (Caterpillar Inc Div Caterpillar Defense), 2174 (Flexfab Llc).

What NSN replaces 4720-00-349-9103?

There are 12 known substitutes for 4720-00-349-9103: 9540-00-145-8143, 5325-00-174-2860, 5310-00-204-5329 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS521304B305R?

Key specifications for MS521304B305R: Outside Diameter: 1.312 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 4 TYPE AND B GRADE AND 3 CLASS; Specification/standard Data: 81348-ZZ-H-428 GOVERNMENT SPECIFICATION AND 96906-MS52130 GOVERNMENT STANDARD; Inside Surface Condition: SMOOTH. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4720-00-349-9103 still in active supply?

NSN 4720-00-349-9103 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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