PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2873Coupling,pipe

George Fischer Sloane, Inc. · NSN 4730-00-495-2621 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-495-2621 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-495-2621. Primary manufacturer part number: 2873.
Features
  • Coupling,pipe — FSC 4730
  • Connection Style: SOCKET (PIPE) FIRST END
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Nominal Pipe Size Accommodated: 3.000 INCHES FIRST END IN
  • Nondefinitive Spec/std Data: 1 TYPE
  • Pipe Wall Thickness Designation for Which Designed: SCHEDULE 40 FIRST END
  • Nominal Thread Size: 3.000 INCHES SECOND END IN
  • Connection Style: PLAIN (PIPE) SECOND 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 4730-00-495-2621, 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 George Fischer Sloane, Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN4730-00-495-2621
Primary Part Number2873
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGeorge Fischer Sloane, Inc.
StatusACTIVE
Connection StyleSOCKET (PIPE) FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Pipe Size Accommodated3.000 INCHES FIRST END IN
Nondefinitive Spec/std Data1 TYPE
Pipe Wall Thickness Designation for Which DesignedSCHEDULE 40 FIRST END
Nominal Thread Size3.000 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Thread Series DesignatorNPT SECOND END
Material Document and ClassificationASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Overall Length2.750 INCHES IN
Style DesignatorPLAIN
Connection TypeUNTHREADED INTERNAL PIPE FIRST END
MaterialPLASTIC OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-032-9442 INTERCHANGEABLE
Puller,mechanical
5306-00-206-8868202873 INTERCHANGEABLE
Bolt,hook
Clark Material Handling Company
2530-00-238-5395J3207695 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Chrysler Corp Engine and Components Sales Diversified Products Div
5935-00-414-1154MMM5PS INTERCHANGEABLE
Connector Body,receptacle,electr
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
6210-00-514-2637287-3A INTERCHANGEABLE
Control,electric Light
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
5330-00-606-5461111759 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
4820-00-632-61502873 INTERCHANGEABLE
Valve,gate
Hydro-Aire Aerospace Corp
5325-00-637-8054MS35489-53 INTERCHANGEABLE
Grommet,nonmetallic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5950-00-646-1629601618 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Div Rms - Mitchel Field
2990-01-020-7111 INTERCHANGEABLE
Muffler,exhaust
Cross-Reference Index
Part NumberManufacturer
2873 George Fischer Sloane, Inc. (USA)
2388K62 Mcmaster-Carr Supply Co (USA)
LP320 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ASTM D2665 American Society for Testing and Materials Dba Astm International (USA)
Related Parts
5120-00-032-9442INTERCHANGEABLE
PULLER,MECHANICAL
5306-00-206-8868INTERCHANGEABLE
BOLT,HOOK
202873
2530-00-238-5395INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
J3207695
5935-00-414-1154INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
MMM5PS
6210-00-514-2637INTERCHANGEABLE
CONTROL,ELECTRIC LIGHT
287-3A
5330-00-606-5461INTERCHANGEABLE
GASKET
111759
4820-00-632-6150INTERCHANGEABLE
VALVE,GATE
2873
5325-00-637-8054INTERCHANGEABLE
GROMMET,NONMETALLIC
MS35489-53
5950-00-646-1629INTERCHANGEABLE
TRANSFORMER,POWER
601618
2990-01-020-7111INTERCHANGEABLE
MUFFLER,EXHAUST
5905-01-085-9649INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
2873
4310-01-300-9112INTERCHANGEABLE
PLATE,VALVE STOP
280730A

Frequently Asked Questions

What is NSN 4730-00-495-2621?

NSN 4730-00-495-2621 is a Coupling,pipe, manufactured by George Fischer Sloane, Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-495-2621?

NSN 4730-00-495-2621 has 4 cross-referenced part numbers: 2873 (George Fischer Sloane, Inc.), 2388K62 (Mcmaster-Carr Supply Co), LP320 (Federal Specifications Promulgated by General Services Administration Washington DC), ASTM D2665 (American Society for Testing and Materials Dba Astm International).

What NSN replaces 4730-00-495-2621?

There are 12 known substitutes for 4730-00-495-2621: 5120-00-032-9442, 5306-00-206-8868, 2530-00-238-5395 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2873?

Key specifications for 2873: Connection Style: SOCKET (PIPE) FIRST END; Connection Type: THREADED EXTERNAL PIPE SECOND END; Nominal Pipe Size Accommodated: 3.000 INCHES FIRST END IN; Nondefinitive Spec/std Data: 1 TYPE. 13 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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