PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-2-6183Expansion Joint,pipe

Pathway Bellows Inc a Dover Sargent Co · NSN 4730-01-357-8598 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-357-8598 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-357-8598. Primary manufacturer part number: B-2-6183.
Features
  • Expansion Joint,pipe — FSC 4730
  • 4 verified cross-references
  • Primary manufacturer: Pathway Bellows Inc a Dover Sargent Co
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-357-8598, 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 Pathway Bellows Inc a Dover Sargent Co. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameExpansion Joint,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersPathway Bellows Inc a Dover Sargent Co (CAGE 0GZ44); Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (CAGE 30009); Hyspan Precision Products, Inc. (CAGE 70510); Senior Operations Llc Div Senior Flexonics Pathway (CAGE 74713)
Technical Specifications
ParameterValue
NSN4730-01-357-8598
Primary Part NumberB-2-6183
Item NameExpansion Joint,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerPathway Bellows Inc a Dover Sargent Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5331-00-291-537329862 INTERCHANGEABLE
O-Ring
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4920-01-097-11402986-2 INTERCHANGEABLE
Cable Extension
Honeywell International Inc. Dba Honeywell Div Aerospace -Olathe Hums Div
4320-01-278-8732 INTERCHANGEABLE
Rotor,pump
4820-01-335-70124-30581 INTERCHANGEABLE
Valve Assembly
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
Cross-Reference Index
Part NumberManufacturer
B-2-6183 Pathway Bellows Inc a Dover Sargent Co (USA)
29862 Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (USA)
29862 Hyspan Precision Products, Inc. (USA)
6-S-FF-50-16-L Senior Operations Llc Div Senior Flexonics Pathway (USA)
Related Parts
5331-00-291-5373INTERCHANGEABLE
O-RING
29862
4920-01-097-1140INTERCHANGEABLE
CABLE EXTENSION
2986-2
4320-01-278-8732INTERCHANGEABLE
ROTOR,PUMP
4820-01-335-7012INTERCHANGEABLE
VALVE ASSEMBLY
4-30581

Frequently Asked Questions

What is NSN 4730-01-357-8598?

NSN 4730-01-357-8598 is a Expansion Joint,pipe, manufactured by Pathway Bellows Inc a Dover Sargent Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-357-8598?

NSN 4730-01-357-8598 has 4 cross-referenced part numbers: B-2-6183 (Pathway Bellows Inc a Dover Sargent Co), 29862 (Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc), 29862 (Hyspan Precision Products, Inc.), 6-S-FF-50-16-L (Senior Operations Llc Div Senior Flexonics Pathway).

What NSN replaces 4730-01-357-8598?

There are 4 known substitutes for 4730-01-357-8598: 5331-00-291-5373, 4920-01-097-1140, 4320-01-278-8732 and 1 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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