PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1390591Coupling Half,quick Disconnect

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 4730-00-727-9145 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-727-9145 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-727-9145. Primary manufacturer part number: 1390591.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Material Document and Classification: QQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Style Designator: MALE COUPLING HALF
  • Material: COPPER ALLOY BODY
  • Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS
  • Quick Disconnect Method: PUSH-PULL ALL ENDS
  • Nominal Thread Size: 0.125 INCHES ALL ENDS IN
  • Thread Series Designator: NPT ALL ENDS
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-727-9145, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-727-9145
Primary Part Number1390591
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Material Document and ClassificationQQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE BODY
Style DesignatorMALE COUPLING HALF
MaterialCOPPER ALLOY BODY
Connection TypeEXTERNAL QUICK DISCONNECT ALL ENDS
Quick Disconnect MethodPUSH-PULL ALL ENDS
Nominal Thread Size0.125 INCHES ALL ENDS IN
Thread Series DesignatorNPT ALL ENDS
Nominal Pipe Size Accommodated0.125 INCHES ALL ENDS IN
Mating End IdentificationE.B.WIGGINS,INC SOCKET PART NO.P1705
Connection TypeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
Connection StylePLAIN ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5999-00-500-579613626-73-1 INTERCHANGEABLE
Contact,electrical
Ward Leonard Ct Llc
6105-00-735-03497350349 INTERCHANGEABLE
Motor,direct Current
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
1390591 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
BP1706 Transdigm Inc Div Adelwiggins Group (USA)
Related Parts
5999-00-500-5796INTERCHANGEABLE
CONTACT,ELECTRICAL
13626-73-1
6105-00-735-0349INTERCHANGEABLE
MOTOR,DIRECT CURRENT
7350349

Frequently Asked Questions

What is NSN 4730-00-727-9145?

NSN 4730-00-727-9145 is a Coupling Half,quick Disconnect, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-727-9145?

NSN 4730-00-727-9145 has 2 cross-referenced part numbers: 1390591 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), BP1706 (Transdigm Inc Div Adelwiggins Group).

What NSN replaces 4730-00-727-9145?

There are 2 known substitutes for 4730-00-727-9145: 5999-00-500-5796, 6105-00-735-0349. Verify interchangeability with system specifications before substitution.

What are the specifications of 1390591?

Key specifications for 1390591: Material Document and Classification: QQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE BODY; Style Designator: MALE COUPLING HALF; Material: COPPER ALLOY BODY; Overall Length: 1.281 INCHES NOMINAL IN. 12 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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