PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

552181Reducer,pipe

Tyco Fire Products Lp · NSN 4730-01-682-0782 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-682-0782 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-682-0782. Primary manufacturer part number: 552181.
Features
  • Reducer,pipe — FSC 4730
  • 1 verified cross-reference
  • Primary manufacturer: Tyco Fire Products Lp
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-01-682-0782, 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 Tyco Fire Products Lp. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4730-01-682-0782
Primary Part Number552181
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerTyco Fire Products Lp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5985-01-274-14532901404-1 INTERCHANGEABLE
Waveguide Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-01-290-4190E-O-I-081653-20-01-1-SPG-VCR8X INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division
4730-01-542-323855-2181 INTERCHANGEABLE
Tee,tube
Thermo King Corp
Cross-Reference Index
Part NumberManufacturer
552181 PRIMARY Tyco Fire Products Lp (USA)
Related Parts
5985-01-274-1453INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
2901404-1
5330-01-290-4190INTERCHANGEABLE
GASKET
E-O-I-081653-20-01-1-SPG-VCR8X
4730-01-542-3238INTERCHANGEABLE
TEE,TUBE
55-2181

Frequently Asked Questions

What is NSN 4730-01-682-0782?

NSN 4730-01-682-0782 is a Reducer,pipe, manufactured by Tyco Fire Products Lp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-682-0782?

NSN 4730-01-682-0782 has 1 cross-referenced part number: 552181 (Tyco Fire Products Lp).

What NSN replaces 4730-01-682-0782?

There are 3 known substitutes for 4730-01-682-0782: 5985-01-274-1453, 5330-01-290-4190, 4730-01-542-3238. Verify interchangeability with system specifications before substitution.

What are the specifications of 552181?

Key specifications for 552181: End Item Identification: WET VALVE HYDRO TEST ASSEMBLY; Part Name Assigned by Controlling Agency: REDUCER,PIPE. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com