PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

47781Expansion Joint,pipe

Hyspan Precision Products, Inc. · NSN 4730-01-386-1845 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-386-1845 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-386-1845. Primary manufacturer part number: 47781.
Features
  • Expansion Joint,pipe — FSC 4730
  • Nominal Pipe Size Designation: 3.000 INCHES IN
  • Joint Type: DOUBLE
  • End Connection Type: FLANGED
  • Design Type: SPOOL
  • 2 verified cross-references
  • Primary manufacturer: Hyspan Precision Products, Inc.
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-386-1845, 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 Hyspan Precision Products, Inc.. Government technical data includes 4 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-386-1845
Primary Part Number47781
Item NameExpansion Joint,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHyspan Precision Products, Inc.
StatusACTIVE
Nominal Pipe Size Designation3.000 INCHES IN
Joint TypeDOUBLE
End Connection TypeFLANGED
Design TypeSPOOL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2920-00-019-2953UC12 INTERCHANGEABLE
Coil,ignition
Standard Motor Products
5940-00-229-7538CVC880-11 INTERCHANGEABLE
Terminal,lug
Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division
5985-01-024-19874778-1.0 INTERCHANGEABLE
Attenuator,fixed
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
47781 PRIMARY Hyspan Precision Products, Inc. (USA)
47781 Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (USA)
Related Parts
2920-00-019-2953INTERCHANGEABLE
COIL,IGNITION
UC12
5940-00-229-7538INTERCHANGEABLE
TERMINAL,LUG
CVC880-11
5985-01-024-1987INTERCHANGEABLE
ATTENUATOR,FIXED
4778-1.0

Frequently Asked Questions

What is NSN 4730-01-386-1845?

NSN 4730-01-386-1845 is a Expansion Joint,pipe, manufactured by Hyspan Precision Products, Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-386-1845?

NSN 4730-01-386-1845 has 2 cross-referenced part numbers: 47781 (Hyspan Precision Products, Inc.), 47781 (Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc).

What NSN replaces 4730-01-386-1845?

There are 3 known substitutes for 4730-01-386-1845: 2920-00-019-2953, 5940-00-229-7538, 5985-01-024-1987. Verify interchangeability with system specifications before substitution.

What are the specifications of 47781?

Key specifications for 47781: Nominal Pipe Size Designation: 3.000 INCHES IN; Joint Type: DOUBLE; End Connection Type: FLANGED; Design Type: SPOOL. 5 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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