PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

835-040Coupling,pipe

Lasco Industries · NSN 4730-00-265-1751 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-265-1751 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-265-1751. Primary manufacturer part number: 835-040.
Features
  • Coupling,pipe — FSC 4730
  • Connection Type: UNTHREADED INTERNAL PIPE SECOND ENDUNTHREADED INTERNAL PIPE SECOND END
  • Style Designator: PLAINPLAIN
  • Material Document and Classification: ASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Nominal Thread Size: 4.000 INCHES FIRST END4.000 INCHES FIRST END IN
  • Connection Style: PLAIN (PIPE) FIRST ENDPLAIN (PIPE) FIRST END
  • Material: PLASTIC OVERALL
  • Connection Type: THREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Plastic Overall construction
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-00-265-1751, 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 Lasco Industries. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-265-1751
Primary Part Number835-040
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerLasco Industries
StatusACTIVE
Connection TypeUNTHREADED INTERNAL PIPE SECOND ENDUNTHREADED INTERNAL PIPE SECOND END
Style DesignatorPLAINPLAIN
Material Document and ClassificationASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Thread Size4.000 INCHES FIRST END4.000 INCHES FIRST END IN
Connection StylePLAIN (PIPE) FIRST ENDPLAIN (PIPE) FIRST END
MaterialPLASTIC OVERALL
Connection TypeTHREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END
Nominal Overall Length4.750 INCHES4.750 INCHES IN
Thread Series DesignatorNPT FIRST ENDNPT FIRST END
Connection StyleSOCKET (PIPE) SECOND ENDSOCKET (PIPE) SECOND END
Nominal Pipe Size Accommodated4.000 INCHES SECOND END4.000 INCHES SECOND END IN
Pipe Wall Thickness Designation for Which DesignedSCHEDULE 80 SECOND ENDSCHEDULE 80 SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-042-8649 INTERCHANGEABLE
Seal,plain Encased
4730-00-114-9898 INTERCHANGEABLE
Elbow,pipe
3110-00-120-3075132842 INTERCHANGEABLE
Bearing,roller,needle
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
4730-00-201-8409 INTERCHANGEABLE
Elbow,pipe
4730-00-251-6532 INTERCHANGEABLE
Elbow,pipe
4730-00-258-767701025031 INTERCHANGEABLE
Reducer,pipe
Nibco Inc Chemtrol Div
4730-00-263-41850041120-040 INTERCHANGEABLE
Elbow,pipe
Cleveland Service Center
4730-00-263-4187 INTERCHANGEABLE
Tee,pipe
4730-00-263-4197829-040 INTERCHANGEABLE
Coupling,pipe
Nibco Inc Chemtrol Div
4730-00-263-42024501-4X2 INTERCHANGEABLE
Reducer,pipe
Nibco Inc Chemtrol Div
Cross-Reference Index
Part NumberManufacturer
8580 Eslon Thermoplastics Inc (USA)
835-040 PRIMARY Lasco Industries (USA)
D2467 American Society for Testing and Materials Dba Astm International (USA)
835-040 PRIMARY Nibco Inc Chemtrol Div (USA)
ASTM D2467 American Society for Testing and Materials Dba Astm International (USA)
835-040 Nibco Inc (USA)
01027016 Nibco Inc (USA)
0061120-040 PRIMARY Cleveland Service Center (USA)
01027016 Celanese Piping Systems Inc Sub of Celanese Corp (USA)
835-040 George Fischer Sloane, Inc. (USA)
01027016 PRIMARY Nibco Inc Chemtrol Div (USA)
Related Parts
5330-00-042-8649INTERCHANGEABLE
SEAL,PLAIN ENCASED
4730-00-114-9898INTERCHANGEABLE
ELBOW,PIPE
3110-00-120-3075INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
132842
4730-00-201-8409INTERCHANGEABLE
ELBOW,PIPE
4730-00-251-6532INTERCHANGEABLE
ELBOW,PIPE
4730-00-258-7677INTERCHANGEABLE
REDUCER,PIPE
01025031
4730-00-263-4185INTERCHANGEABLE
ELBOW,PIPE
0041120-040
4730-00-263-4187INTERCHANGEABLE
TEE,PIPE
4730-00-263-4197INTERCHANGEABLE
COUPLING,PIPE
829-040
4730-00-263-4202INTERCHANGEABLE
REDUCER,PIPE
4501-4X2
5306-00-350-4294INTERCHANGEABLE
BOLT,SHOULDER
8580
6520-00-431-4156INTERCHANGEABLE
PLATE,MOUNTING,DENTAL ARTICULATO
03867

Frequently Asked Questions

What is NSN 4730-00-265-1751?

NSN 4730-00-265-1751 is a Coupling,pipe, manufactured by Lasco Industries, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-265-1751?

NSN 4730-00-265-1751 has 11 cross-referenced part numbers: 8580 (Eslon Thermoplastics Inc), 835-040 (Lasco Industries), D2467 (American Society for Testing and Materials Dba Astm International), 835-040 (Nibco Inc Chemtrol Div), ASTM D2467 (American Society for Testing and Materials Dba Astm International) and 6 more.

What NSN replaces 4730-00-265-1751?

There are 12 known substitutes for 4730-00-265-1751: 5330-00-042-8649, 4730-00-114-9898, 3110-00-120-3075 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 835-040?

Key specifications for 835-040: Connection Type: UNTHREADED INTERNAL PIPE SECOND ENDUNTHREADED INTERNAL PIPE SECOND END; Style Designator: PLAINPLAIN; Material Document and Classification: ASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Size: 4.000 INCHES FIRST END4.000 INCHES FIRST END IN. 12 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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