PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1800-3/8Elbow,pipe

Flowserve Inc · NSN 4730-00-640-0595 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-640-0595 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-640-0595. Primary manufacturer part number: 1800-3/8.
Features
  • Elbow,pipe — FSC 4730
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Material: STEEL OVERALL
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM THIRD RESPONSE LBS
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
  • Nominal Thread Size: 0.375 INCHES SECOND END IN
  • Thread Series Designator: NPT FIRST END
  • Media for Which Designed: AIR FIRST RESPONSE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-640-0595, 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 Flowserve Inc. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-640-0595
Primary Part Number1800-3/8
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFlowserve Inc
StatusCANCELLED
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MaterialSTEEL OVERALL
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM THIRD RESPONSE LBS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Nominal Thread Size0.375 INCHES SECOND END IN
Thread Series DesignatorNPT FIRST END
Media for Which DesignedAIR FIRST RESPONSE
Flow Angle90.0 DEGREES
Media for Which DesignedSTEAM SECOND RESPONSE
Maximum Operating Temp37.8 FAHRENHEIT FIRST RESPONSE DEGF
Nominal Pipe Size Accommodated0.375 INCHES SECOND END IN
Maximum Operating Temp37.8 FAHRENHEIT THIRD RESPONSE DEGF
Nominal Pipe Size Accommodated0.375 INCHES FIRST END IN
Connection StylePLAIN (PIPE) FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Maximum Operating Temp38.8 FAHRENHEIT SECOND RESPONSE DEGF
Leg Length0.937 INCHES NOMINAL FIRST END IN
Leg Length1.500 INCHES NOMINAL SECOND END IN
Nominal Thread Size0.375 INCHES FIRST END IN
Media for Which DesignedWATER-OIL-GAS THIRD RESPONSE
Thread Series DesignatorNPT SECOND END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
4330-00-078-4153035001 INTERCHANGEABLE
Filter Element,fluid
Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in
2810-00-118-678638438 INTERCHANGEABLE
Cover,clutch Selector
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5961-00-175-3767 INTERCHANGEABLE
Semiconductor Device,diode
6210-00-299-7347 INTERCHANGEABLE
Reflector,light
5930-00-546-5596180038 INTERCHANGEABLE
Switch,thumbwheel
Transico, Inc. Dba Eeco Switch
5360-00-664-419438438 INTERCHANGEABLE
Spring,helical,compression
Arvinmeritor Inc
5935-00-953-1397MS42RM-1 INTERCHANGEABLE
Connector Body,receptacle,electr
Souriau Usa, Inc. Dba Souriau Usa Inc
7025-01-299-6214A3SA-5802 INTERCHANGEABLE
Display Unit
Omron Electronics Llc
5315-01-389-0863 INTERCHANGEABLE
Pin,straight,headless
Cross-Reference Index
Part NumberManufacturer
1800-3/8 PRIMARY Flowserve Inc (USA)
384-3-8 Crane Co Div Valve Div (USA)
303D Crane Co Div Valve Div (USA)
96002314 Strato-Tower Inc (USA)
Related Parts
4330-00-078-4153INTERCHANGEABLE
FILTER ELEMENT,FLUID
035001
2810-00-118-6786INTERCHANGEABLE
COVER,CLUTCH SELECTOR
38438
5961-00-175-3767INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
6210-00-299-7347INTERCHANGEABLE
REFLECTOR,LIGHT
5930-00-546-5596INTERCHANGEABLE
SWITCH,THUMBWHEEL
180038
5360-00-664-4194INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
38438
5935-00-953-1397INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
MS42RM-1
7025-01-299-6214INTERCHANGEABLE
DISPLAY UNIT
A3SA-5802
5315-01-389-0863INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS

Frequently Asked Questions

What is NSN 4730-00-640-0595?

NSN 4730-00-640-0595 is a Elbow,pipe, manufactured by Flowserve Inc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-640-0595?

NSN 4730-00-640-0595 has 4 cross-referenced part numbers: 1800-3/8 (Flowserve Inc), 384-3-8 (Crane Co Div Valve Div), 303D (Crane Co Div Valve Div), 96002314 (Strato-Tower Inc).

What NSN replaces 4730-00-640-0595?

There are 9 known substitutes for 4730-00-640-0595: 4330-00-078-4153, 2810-00-118-6786, 5961-00-175-3767 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1800-3/8?

Key specifications for 1800-3/8: Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Material: STEEL OVERALL; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM THIRD RESPONSE LBS; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-640-0595 still in active supply?

NSN 4730-00-640-0595 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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