PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31049Coupling Assembly,quick Disconne

Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group · NSN 4730-01-135-7501 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-135-7501 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-135-7501. Primary manufacturer part number: 31049.
Features
  • Coupling Assembly,quick Disconne — FSC 4730
  • Quick Disconnect Method: QUICK LEAD THREAD ALL ENDS
  • Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION
  • Leg Length: 0.656 INCHES NOMINAL IN
  • Nominal Thread Size: 0.750 INCHES FIRST FLUID END CONNECTION IN
  • Style Designator: COUPLING ASSEMBLY
  • Thread Class: 2B FIRST FLUID END CONNECTION
  • Thread Series Designator: UNF FIRST FLUID END CONNECTION
Applications
  • Applications requiring Steel Overall construction
General Description

The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-135-7501, 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 Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group. Government technical data includes 9 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-135-7501
Primary Part Number31049
Item NameCoupling Assembly,quick Disconne
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
StatusACTIVE
Quick Disconnect MethodQUICK LEAD THREAD ALL ENDS
Connection TypeTHREADED INTERNAL BOSS FIRST FLUID END CONNECTION
Leg Length0.656 INCHES NOMINAL IN
Nominal Thread Size0.750 INCHES FIRST FLUID END CONNECTION IN
Style DesignatorCOUPLING ASSEMBLY
Thread Class2B FIRST FLUID END CONNECTION
Thread Series DesignatorUNF FIRST FLUID END CONNECTION
MaterialSTEEL OVERALL
Connection StyleBOSS GASKET SEAL FIRST FLUID END CONNECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5340-00-270-8540 INTERCHANGEABLE
Button,plug
5330-00-576-378031049 INTERCHANGEABLE
Gasket,spiral Wound
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-930-198231049 INTERCHANGEABLE
Diaphragm,valve,flat
Itt Marlow a Unit of Itt Pumps and Compressors Div
5910-01-107-660810003-7 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Giga-Tronics Incorporated Dba Giga-Tronics
5930-01-124-1394LS-29960-8 INTERCHANGEABLE
Switch,liquid Level
Setra Systems, Inc. Dba Gems Sensors
6632-01-168-009050733 INTERCHANGEABLE
Membrane Kit,blood Gas Analyzer
Werfen Usa Llc
5360-01-277-8781507-33 INTERCHANGEABLE
Spring,helical,compression
Zurn Industries Inc Wilkins Regulator Co Div
5950-01-347-3273 INTERCHANGEABLE
Transformer,power
6105-01-422-548031049-1 INTERCHANGEABLE
Motor,torque
Elbitamerica, Inc.
5305-01-730-795331049 INTERCHANGEABLE
Screw,machine
Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
Cross-Reference Index
Part NumberManufacturer
50733 Jetstream of Houston, Llp Dba Jetstream of Houston Llp (USA)
31049 PRIMARY Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group (USA)
Related Parts
5340-00-270-8540INTERCHANGEABLE
BUTTON,PLUG
5330-00-576-3780INTERCHANGEABLE
GASKET,SPIRAL WOUND
31049
4820-00-930-1982INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
31049
5910-01-107-6608INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
10003-7
5930-01-124-1394INTERCHANGEABLE
SWITCH,LIQUID LEVEL
LS-29960-8
6632-01-168-0090INTERCHANGEABLE
MEMBRANE KIT,BLOOD GAS ANALYZER
50733
5360-01-277-8781INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
507-33
5950-01-347-3273INTERCHANGEABLE
TRANSFORMER,POWER
6105-01-422-5480INTERCHANGEABLE
MOTOR,TORQUE
31049-1
5305-01-730-7953INTERCHANGEABLE
SCREW,MACHINE
31049

Frequently Asked Questions

What is NSN 4730-01-135-7501?

NSN 4730-01-135-7501 is a Coupling Assembly,quick Disconne, manufactured by Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-135-7501?

NSN 4730-01-135-7501 has 2 cross-referenced part numbers: 50733 (Jetstream of Houston, Llp Dba Jetstream of Houston Llp), 31049 (Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group).

What NSN replaces 4730-01-135-7501?

There are 10 known substitutes for 4730-01-135-7501: 5340-00-270-8540, 5330-00-576-3780, 4820-00-930-1982 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31049?

Key specifications for 31049: Quick Disconnect Method: QUICK LEAD THREAD ALL ENDS; Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION; Leg Length: 0.656 INCHES NOMINAL IN; Nominal Thread Size: 0.750 INCHES FIRST FLUID END CONNECTION IN. 10 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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