PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

703730FAdapter,straight,pipe to Tube

Hydraspecma Ab · NSN 4730-01-621-1921 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-621-1921 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-621-1921. Primary manufacturer part number: 703730F.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • 3 verified cross-references
  • Primary manufacturer: Hydraspecma Ab
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-621-1921, 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 Hydraspecma Ab. This item has 3 commercial cross-references from 3 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 NameAdapter,straight,pipe to Tube
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersHydraspecma Ab (CAGE AL48N); Specma Dunlop Hydraulic Ab (CAGE SA277); Independent Rough Terrain Center Llc (CAGE 1NWY2)
Technical Specifications
ParameterValue
NSN4730-01-621-1921
Primary Part Number703730F
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHydraspecma Ab
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-01-617-3861CC-0009520 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Independent Rough Terrain Center Llc
4730-01-621-0832180126 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Hydraspecma Ab
4730-01-621-1404703732F INTERCHANGEABLE
Adapter,straight,pipe to Tube
Hydraspecma Ab
4730-01-621-2224707778F INTERCHANGEABLE
Reducer,pipe
Hydraspecma Ab
Cross-Reference Index
Part NumberManufacturer
703730F PRIMARY Hydraspecma Ab (SWE)
703730F Specma Dunlop Hydraulic Ab (SWE)
CC-0009520 Independent Rough Terrain Center Llc (USA)
Related Parts
4730-01-617-3861INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
CC-0009520
4730-01-621-0832INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
180126
4730-01-621-1404INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
703732F
4730-01-621-2224INTERCHANGEABLE
REDUCER,PIPE
707778F

Frequently Asked Questions

What is NSN 4730-01-621-1921?

NSN 4730-01-621-1921 is a Adapter,straight,pipe to Tube, manufactured by Hydraspecma Ab, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-621-1921?

NSN 4730-01-621-1921 has 3 cross-referenced part numbers: 703730F (Hydraspecma Ab), 703730F (Specma Dunlop Hydraulic Ab), CC-0009520 (Independent Rough Terrain Center Llc).

What NSN replaces 4730-01-621-1921?

There are 4 known substitutes for 4730-01-621-1921: 4730-01-617-3861, 4730-01-621-0832, 4730-01-621-1404 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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