PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41863Reducer,tube

Woodward Hrt Inc · NSN 4730-00-070-4570 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-070-4570 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-070-4570. Primary manufacturer part number: 41863.
Features
  • Reducer,tube — FSC 4730
  • Reducer Type: CONCENTRIC
  • Thread Class: 3A SECOND END A
  • Thread Class: 3A FIRST END A
  • Nominal Overall Length: 1.406 INCHES IN
  • Seat Angle: 37.0 DEGREES FIRST END
  • Material: STEEL CORROSION RESISTING OVERALL
  • Seat Angle: 37.0 DEGREES SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-070-4570, 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 Woodward Hrt Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-070-4570
Primary Part Number41863
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerWoodward Hrt Inc
StatusACTIVE
Reducer TypeCONCENTRIC
Thread Class3A SECOND END A
Thread Class3A FIRST END A
Nominal Overall Length1.406 INCHES IN
Seat Angle37.0 DEGREES FIRST END
MaterialSTEEL CORROSION RESISTING OVERALL
Seat Angle37.0 DEGREES SECOND END
Nominal Thread Size0.562 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES SECOND END IN
Connection StyleFLARED (TUBE) SECOND END
Connection StyleFLARED (TUBE) FIRST END
Nominal Thread Size0.438 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5325-00-281-653011440 INTERCHANGEABLE
Ring,retaining
Napco International Llc Dba Napco International Inc
5950-00-504-7757 INTERCHANGEABLE
Transformer,audio Frequency
3950-00-976-054941863 INTERCHANGEABLE
Parts Kit,winch
Cunico Corporation
3455-01-054-144715493 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
2910-01-448-995041863 INTERCHANGEABLE
Valve,assy,suction
Bauer Equipment America, Inc.
5331-01-633-531741863 INTERCHANGEABLE
O-Ring
Exlar Corporation
Cross-Reference Index
Part NumberManufacturer
41863 PRIMARY Woodward Hrt Inc (USA)
Related Parts
5325-00-281-6530INTERCHANGEABLE
RING,RETAINING
11440
5950-00-504-7757INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
3950-00-976-0549INTERCHANGEABLE
PARTS KIT,WINCH
41863
3455-01-054-1447INTERCHANGEABLE
CUTTER,MILLING,END
15493
2910-01-448-9950INTERCHANGEABLE
VALVE,ASSY,SUCTION
41863
5331-01-633-5317INTERCHANGEABLE
O-RING
41863

Frequently Asked Questions

What is NSN 4730-00-070-4570?

NSN 4730-00-070-4570 is a Reducer,tube, manufactured by Woodward Hrt Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-070-4570?

NSN 4730-00-070-4570 has 1 cross-referenced part number: 41863 (Woodward Hrt Inc).

What NSN replaces 4730-00-070-4570?

There are 6 known substitutes for 4730-00-070-4570: 5325-00-281-6530, 5950-00-504-7757, 3950-00-976-0549 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 41863?

Key specifications for 41863: Reducer Type: CONCENTRIC; Thread Class: 3A SECOND END A; Thread Class: 3A FIRST END A; Nominal Overall Length: 1.406 INCHES IN. 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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