PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HG861Coupling Half,quick Disconnect

Lockheed Martin Corporation Div Rms · NSN 4730-00-034-7752 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-034-7752 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-034-7752. Primary manufacturer part number: HG861.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Leg Length: 1.250 INCHES NOMINAL IN
  • Connection Style: GASKET SEAL ALL ENDS
  • Style Designator: MALE COUPLING HALF
  • Thread Series Designator: NH ALL ENDS
  • Thread Quantity Per Inch: 8 ALL ENDS
  • Material: COPPER ALLOY BODY
  • Nominal Thread Size: 3.000 INCHES ALL ENDS IN
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-034-7752, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-034-7752
Primary Part NumberHG861
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Leg Length1.250 INCHES NOMINAL IN
Connection StyleGASKET SEAL ALL ENDS
Style DesignatorMALE COUPLING HALF
Thread Series DesignatorNH ALL ENDS
Thread Quantity Per Inch8 ALL ENDS
MaterialCOPPER ALLOY BODY
Nominal Thread Size3.000 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-8514E3 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
5905-00-107-7132 INTERCHANGEABLE
Resistor,fixed,composition
3110-00-142-4425 INTERCHANGEABLE
Bearing,ball,airframe
4820-00-251-15553043250R91 INTERCHANGEABLE
Valve,flow Control
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
4320-00-336-8912D3 INTERCHANGEABLE
Sleeve,shaft,pump
Circor Naval Solutions Llc Dba Warren Pumps
5915-00-342-6344 INTERCHANGEABLE
Cover,filter Box
5905-00-500-7768 INTERCHANGEABLE
Resistor,fixed,composition
5340-00-724-2883D3 INTERCHANGEABLE
Hinge,tee
Dent Manufacturing Inc
5360-00-955-3189 INTERCHANGEABLE
Spring,helical,compression
6740-01-015-1452 INTERCHANGEABLE
Enlarger System
Cross-Reference Index
Part NumberManufacturer
D3 Ever Tite Coupling Co Inc (USA)
HG861 PRIMARY Lockheed Martin Corporation Div Rms (USA)
45C2500 W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (USA)
D Ever Tite Coupling Co Inc (USA)
Related Parts
3110-00-100-8514INTERCHANGEABLE
BEARING,BALL,THRUST
E3
5905-00-107-7132INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
3110-00-142-4425INTERCHANGEABLE
BEARING,BALL,AIRFRAME
4820-00-251-1555INTERCHANGEABLE
VALVE,FLOW CONTROL
3043250R91
4320-00-336-8912INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
D3
5915-00-342-6344INTERCHANGEABLE
COVER,FILTER BOX
5905-00-500-7768INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5340-00-724-2883INTERCHANGEABLE
HINGE,TEE
D3
5360-00-955-3189INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6740-01-015-1452INTERCHANGEABLE
ENLARGER SYSTEM
4330-01-036-5583INTERCHANGEABLE
FILTER ELEMENT,FLUID
D3
5961-01-040-6421INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 4730-00-034-7752?

NSN 4730-00-034-7752 is a Coupling Half,quick Disconnect, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-034-7752?

NSN 4730-00-034-7752 has 4 cross-referenced part numbers: D3 (Ever Tite Coupling Co Inc), HG861 (Lockheed Martin Corporation Div Rms), 45C2500 (W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center), D (Ever Tite Coupling Co Inc).

What NSN replaces 4730-00-034-7752?

There are 12 known substitutes for 4730-00-034-7752: 3110-00-100-8514, 5905-00-107-7132, 3110-00-142-4425 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HG861?

Key specifications for HG861: Leg Length: 1.250 INCHES NOMINAL IN; Connection Style: GASKET SEAL ALL ENDS; Style Designator: MALE COUPLING HALF; Thread Series Designator: NH ALL ENDS. 8 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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