PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31530Adapter,straight,tube to Boss

Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group · NSN 4730-01-043-3749 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-043-3749 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-043-3749. Primary manufacturer part number: 31530.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Thread Series Designator: UNEF FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.125 INCHES FIRST END IN
  • Thread Class: 2B FIRST END
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
  • Thread Class: 2B SECOND END
  • Material: STEEL OVERALL
  • Thread Series Designator: UNEF SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-043-3749, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-043-3749
Primary Part Number31530
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
StatusACTIVE
Thread Series DesignatorUNEF FIRST END
Nominal Outside Diameter Tube Accommodated0.125 INCHES FIRST END IN
Thread Class2B FIRST END
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Thread Class2B SECOND END
MaterialSTEEL OVERALL
Thread Series DesignatorUNEF SECOND END
Nominal Overall Length6.000 INCHES IN
Connection StyleFLARED (TUBE) FIRST END
Nominal Thread Size0.312 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Seat Angle37.0 DEGREES FIRST END
Nominal Thread Size0.312 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5815-00-356-3393SC-B-70177 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6210-00-555-651650731-2 INTERCHANGEABLE
Light Assembly,indicator
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
3130-00-586-0424 INTERCHANGEABLE
Bearing Unit,plain
4820-00-711-6515134223R1 INTERCHANGEABLE
Seat,valve
Navistar Intl Corp Truck Br Ohio Plant
4720-00-730-53545073-1 INTERCHANGEABLE
Hose,preformed
Flexco, Inc
5998-00-985-0960 INTERCHANGEABLE
Circuit Card Assembly
5950-01-089-75695209-413 INTERCHANGEABLE
Transformer
Raytheon Company Div Rmd Strategic
3040-01-389-701950731 INTERCHANGEABLE
Adapter,spline
Danfoss Power Solutions (us) Company Dba Sauer-Danfoss Us Co
Cross-Reference Index
Part NumberManufacturer
31530 PRIMARY Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group (USA)
50731 PRIMARY Jetstream of Houston, Llp Dba Jetstream of Houston Llp (USA)
431530001 Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group (USA)
Related Parts
5815-00-356-3393INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SC-B-70177
6210-00-555-6516INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
50731-2
3130-00-586-0424INTERCHANGEABLE
BEARING UNIT,PLAIN
4820-00-711-6515INTERCHANGEABLE
SEAT,VALVE
134223R1
4720-00-730-5354INTERCHANGEABLE
HOSE,PREFORMED
5073-1
5998-00-985-0960INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5950-01-089-7569INTERCHANGEABLE
TRANSFORMER
5209-413
3040-01-389-7019INTERCHANGEABLE
ADAPTER,SPLINE
50731

Frequently Asked Questions

What is NSN 4730-01-043-3749?

NSN 4730-01-043-3749 is a Adapter,straight,tube to Boss, 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 4730-01-043-3749?

NSN 4730-01-043-3749 has 3 cross-referenced part numbers: 31530 (Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group), 50731 (Jetstream of Houston, Llp Dba Jetstream of Houston Llp), 431530001 (Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group).

What NSN replaces 4730-01-043-3749?

There are 8 known substitutes for 4730-01-043-3749: 5815-00-356-3393, 6210-00-555-6516, 3130-00-586-0424 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31530?

Key specifications for 31530: Thread Series Designator: UNEF FIRST END; Nominal Outside Diameter Tube Accommodated: 0.125 INCHES FIRST END IN; Thread Class: 2B FIRST END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END. 14 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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