PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1/2 NPTCoupling,pipe

Mcmaster-Carr Supply Co · NSN 4730-01-518-3759 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-518-3759 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-518-3759. Primary manufacturer part number: 1/2 NPT.
Features
  • Coupling,pipe — FSC 4730
  • Material: COPPER ALLOY OVERALL
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Thread Series Designator: NPT ALL ENDS
  • Style Designator: PLAIN
  • Pipe Wall Thickness Designation for Which Designed: SCHEDULE 40 ALL ENDS
  • Nominal Thread Size: 0.500 INCHES ALL ENDS IN
  • Nominal Overall Length: 1.312 INCHES IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-01-518-3759, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-518-3759
Primary Part Number1/2 NPT
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Thread Series DesignatorNPT ALL ENDS
Style DesignatorPLAIN
Pipe Wall Thickness Designation for Which DesignedSCHEDULE 40 ALL ENDS
Nominal Thread Size0.500 INCHES ALL ENDS IN
Nominal Overall Length1.312 INCHES IN
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-249-3935 INTERCHANGEABLE
Elbow,pipe
4730-01-382-1113 INTERCHANGEABLE
Plug,pipe
4730-01-413-82711/2-NPT INTERCHANGEABLE
Plug,pipe
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
1/2 NPT PRIMARY Mcmaster-Carr Supply Co (USA)
4429K113 Mcmaster-Carr Supply Co (USA)
Related Parts
4730-00-249-3935INTERCHANGEABLE
ELBOW,PIPE
4730-01-382-1113INTERCHANGEABLE
PLUG,PIPE
4730-01-413-8271INTERCHANGEABLE
PLUG,PIPE
1/2-NPT

Frequently Asked Questions

What is NSN 4730-01-518-3759?

NSN 4730-01-518-3759 is a Coupling,pipe, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-518-3759?

NSN 4730-01-518-3759 has 2 cross-referenced part numbers: 1/2 NPT (Mcmaster-Carr Supply Co), 4429K113 (Mcmaster-Carr Supply Co).

What NSN replaces 4730-01-518-3759?

There are 3 known substitutes for 4730-01-518-3759: 4730-00-249-3935, 4730-01-382-1113, 4730-01-413-8271. Verify interchangeability with system specifications before substitution.

What are the specifications of 1/2 NPT?

Key specifications for 1/2 NPT: Material: COPPER ALLOY OVERALL; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE; Special Features: RATING 125PSI AIR, STEAM; 200PSI WATER,OIL,GAS; Thread Series Designator: NPT ALL ENDS. 11 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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