NSN 4720-00-445-4391 · NIIN 004454391 · Part number 5262K521
Mcmaster-Carr Supply Co · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 39428
Government record, cited
NSN 4720-00-445-4391 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-445-4391. Manufacturer of record part number: 5262K521.
Also searched as4720-00-445-4391 ·
4720004454391 ·
NIIN 004454391 ·
00-445-4391 ·
FSC 4720 Hose and Flexible Tubing · CAGE 39428 · 5262K521 · 5262K52 · 5262N52
Temp Rating: 750.0 FAHRENHEIT SINGLE RESPONSE DEGF
Minimum Inside Bending Radius: 22.000 INCHES IN
Cross-Sectional Shape Style: ROUND
Outside Diameter: 6.024 INCHES NOMINAL IN
Inside Diameter: 6.000 INCHES NOMINAL IN
Outer Covering Environmental Protection: CORROSION RESISTANT AND HEAT RESISTANT
Material: STEEL INNER CONVEYING TUBE
Identification
NSN: 4720-00-445-4391
NIIN: 004454391
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 5262K521
Manufacturer: Mcmaster-Carr Supply Co
General Description
The Hose,metallic, cataloged under National Stock Number 4720-00-445-4391, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Other items in FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080
HOSE ASSEMBLY,NONMETALLIC
4720-00-000-0081
4720-00-000-0081 · Item name not on file
4720-00-000-0084
HOSE,PREFORMED
4720-00-000-0724
4720-00-000-0724 · Item name not on file
4720-00-001-0014
HOSE ASSEMBLY,NONMETALLIC
4720-00-001-0015
4720-00-001-0015 · Item name not on file
4720-00-001-0023
HOSE ASSEMBLY,NONMETALLIC
4720-00-001-0025
4720-00-001-0025 · Item name not on file
Frequently Asked Questions
What is NSN 4720-00-445-4391?
NSN 4720-00-445-4391 is a Hose,metallic, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What part numbers are listed for NSN 4720-00-445-4391?
NSN 4720-00-445-4391 has 2 manufacturer part numbers on file: 5262K52 (Mcmaster-Carr Supply Co), 5262K521 (Mcmaster-Carr Supply Co).
What are the specifications of 5262K521?
Key specifications for 5262K521: Temp Rating: 750.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 22.000 INCHES IN; Cross-Sectional Shape Style: ROUND; Outside Diameter: 6.024 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4720-00-445-4391 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.