PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

227435Reducer,tube

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 4730-00-975-8082 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-975-8082 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-975-8082. Primary manufacturer part number: 227435.
Features
  • Reducer,tube — FSC 4730
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Nominal Outside Diameter Tube Accommodated: 1.078 INCHES SECOND END IN
  • Nominal Thread Size: 1.625 INCHES SECOND END IN
  • Nominal Thread Size: 1.750 INCHES FIRST END IN
  • Seat Angle: 29.0 DEGREES SECOND END
  • Nominal Overall Length: 1.920 INCHES IN
  • Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-975-8082, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 20 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-975-8082
Primary Part Number227435
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Outside Diameter Tube Accommodated1.078 INCHES SECOND END IN
Nominal Thread Size1.625 INCHES SECOND END IN
Nominal Thread Size1.750 INCHES FIRST END IN
Seat Angle29.0 DEGREES SECOND END
Nominal Overall Length1.920 INCHES IN
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST END IN
MaterialALUMINUM OVERALL
Thread Class3A SECOND END A
Thread Series DesignatorUN SECOND END
Thread Quantity Per Inch12 SECOND END
Reducer TypeCONCENTRIC
Connection StyleINVERTED FLARE (TUBE) FIRST END
Seat Angle25.0 DEGREES FIRST END
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Thread Pitch Diameters+1.6320 TO 1.7390 INCHES FIRST END IN
Thread Quantity Per Inch12 FIRST END
Thread Series DesignatorUNS FIRST END
Connection StyleINVERTED FLARE (TUBE) SECOND END
Material Document and ClassificationAMS4120 ASSN STD ALL MATERIAL RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-137-99652274-35 INTERCHANGEABLE
Coil,radio Frequency
American Precision Industries Inc.
4820-00-412-1827 INTERCHANGEABLE
Flow Control Device
5910-00-843-0757 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
4730-01-669-4816 INTERCHANGEABLE
Reducer,tube
Cross-Reference Index
Part NumberManufacturer
227435 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
227435 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
Related Parts
5950-00-137-9965INTERCHANGEABLE
COIL,RADIO FREQUENCY
2274-35
4820-00-412-1827INTERCHANGEABLE
FLOW CONTROL DEVICE
5910-00-843-0757INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
4730-01-669-4816INTERCHANGEABLE
REDUCER,TUBE

Frequently Asked Questions

What is NSN 4730-00-975-8082?

NSN 4730-00-975-8082 is a Reducer,tube, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-975-8082?

NSN 4730-00-975-8082 has 2 cross-referenced part numbers: 227435 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 227435 (Turbo Power & Marine System Inc Sub of United Technologies Corp).

What NSN replaces 4730-00-975-8082?

There are 4 known substitutes for 4730-00-975-8082: 5950-00-137-9965, 4820-00-412-1827, 5910-00-843-0757 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 227435?

Key specifications for 227435: Connection Type: THREADED EXTERNAL TUBE FIRST END; Nominal Outside Diameter Tube Accommodated: 1.078 INCHES SECOND END IN; Nominal Thread Size: 1.625 INCHES SECOND END IN; Nominal Thread Size: 1.750 INCHES FIRST END IN. 21 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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