PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20558Hose,preformed

Superior Diesel, Inc. · NSN 4720-01-591-2445 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-591-2445 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-591-2445. Primary manufacturer part number: 20558.
Features
  • Hose,preformed — FSC 4720
  • 2 verified cross-references
  • Primary manufacturer: Superior Diesel, Inc.
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose,preformed, cataloged under National Stock Number 4720-01-591-2445, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Superior Diesel, Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-591-2445
Primary Part Number20558
Item NameHose,preformed
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerSuperior Diesel, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2915-00-122-661039-10113 INTERCHANGEABLE
Filter Element,fluid
Hydro-Aire Aerospace Corp
3455-00-232-421519800 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
4820-00-289-08531226 INTERCHANGEABLE
Valve,safety Relief
Dante Valve Company
1015-01-229-544220558 INTERCHANGEABLE
Seat
Real-Time Laboratories, Llc
5310-01-306-464320558 INTERCHANGEABLE
Washer,lock
Funk Mfg Co Sub of Deere and Co
4810-01-379-122120558 INTERCHANGEABLE
Piston,valve
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
5120-01-430-8167 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
20558 PRIMARY Superior Diesel, Inc. (USA)
20558 Ison Equipment Co Inc Superior Diesel Div (USA)
Related Parts
2915-00-122-6610INTERCHANGEABLE
FILTER ELEMENT,FLUID
39-10113
3455-00-232-4215INTERCHANGEABLE
REAMER,MACHINE
19800
4820-00-289-0853INTERCHANGEABLE
VALVE,SAFETY RELIEF
1226
1015-01-229-5442INTERCHANGEABLE
SEAT
20558
5310-01-306-4643INTERCHANGEABLE
WASHER,LOCK
20558
4810-01-379-1221INTERCHANGEABLE
PISTON,VALVE
20558
5120-01-430-8167INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 4720-01-591-2445?

NSN 4720-01-591-2445 is a Hose,preformed, manufactured by Superior Diesel, Inc., classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-591-2445?

NSN 4720-01-591-2445 has 2 cross-referenced part numbers: 20558 (Superior Diesel, Inc.), 20558 (Ison Equipment Co Inc Superior Diesel Div).

What NSN replaces 4720-01-591-2445?

There are 7 known substitutes for 4720-01-591-2445: 2915-00-122-6610, 3455-00-232-4215, 4820-00-289-0853 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20558?

Key specifications for 20558: Special Features: END ITEM; 403720A,SATC; PUMP CENTRIFUGAL, 400 GPM, COOLING GROUP A; Part Name Assigned by Controlling Agency: RADIATOR HOSE; End Item Identification: PUMP. 3 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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