PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1019D0408Reducer,tube

Northrop Grumman Systems Corporation · NSN 4730-01-247-4678 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-247-4678 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-247-4678. Primary manufacturer part number: S1019D0408.
Features
  • Reducer,tube — FSC 4730
  • Connection Type: THREADED EXTERNAL TUBE SECOND END
  • Reducer Type: CONCENTRIC
  • Nominal Thread Size: 0.438 INCHES FIRST END BULKHEAD IN
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES SECOND END IN
  • Seat Angle: 37.0 DEGREES ALL ENDS
  • Nominal Thread Size: 0.750 INCHES SECOND END IN
  • Nominal Overall Length: 2.017 INCHES IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-01-247-4678, 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 Northrop Grumman Systems Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-247-4678
Primary Part NumberS1019D0408
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusCANCELLED
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Reducer TypeCONCENTRIC
Nominal Thread Size0.438 INCHES FIRST END BULKHEAD IN
Nominal Outside Diameter Tube Accommodated0.500 INCHES SECOND END IN
Seat Angle37.0 DEGREES ALL ENDS
Nominal Thread Size0.750 INCHES SECOND END IN
Nominal Overall Length2.017 INCHES IN
Connection TypeTHREADED EXTERNAL TUBE FIRST END BULKHEAD
Thread Class3A ALL ENDS A
MaterialALUMINUM ALLOY OVERALL
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END BULKHEAD IN
Connection StyleFLARED (TUBE) ALL ENDS
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-011-8539118539 INTERCHANGEABLE
Nut,tube Coupling
Rolls-Royce Solutions America Inc
5340-00-114-97879M215C1000 INTERCHANGEABLE
Handle,bow
The Boeing Company Div Defense
5905-00-121-5921 INTERCHANGEABLE
Resistor,fixed,film
5330-00-306-1062S9-19 INTERCHANGEABLE
Gasket
Schulze Mfg., Inc.
Cross-Reference Index
Part NumberManufacturer
PA832D0408 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
S1019 Northrop Grumman Systems Corporation (USA)
DC0S1019D0408 Huck Intl Inc (USA)
S1019D0408 PRIMARY Northrop Grumman Systems Corporation (USA)
LC58-7301D0408 Linaire Engineering (USA)
AS1037D0408 Society of Automotive Engineers Inc (USA)
Related Parts
4730-00-011-8539INTERCHANGEABLE
NUT,TUBE COUPLING
118539
5340-00-114-9787INTERCHANGEABLE
HANDLE,BOW
9M215C1000
5905-00-121-5921INTERCHANGEABLE
RESISTOR,FIXED,FILM
5330-00-306-1062INTERCHANGEABLE
GASKET
S9-19

Frequently Asked Questions

What is NSN 4730-01-247-4678?

NSN 4730-01-247-4678 is a Reducer,tube, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-247-4678?

NSN 4730-01-247-4678 has 6 cross-referenced part numbers: PA832D0408 (Parker Hannifin Corporation Div Aerospace Group Headquarters), S1019 (Northrop Grumman Systems Corporation), DC0S1019D0408 (Huck Intl Inc), S1019D0408 (Northrop Grumman Systems Corporation), LC58-7301D0408 (Linaire Engineering) and 1 more.

What NSN replaces 4730-01-247-4678?

There are 4 known substitutes for 4730-01-247-4678: 4730-00-011-8539, 5340-00-114-9787, 5905-00-121-5921 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S1019D0408?

Key specifications for S1019D0408: Connection Type: THREADED EXTERNAL TUBE SECOND END; Reducer Type: CONCENTRIC; Nominal Thread Size: 0.438 INCHES FIRST END BULKHEAD IN; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES SECOND END IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-247-4678 still in active supply?

NSN 4730-01-247-4678 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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