NSN 4720-01-518-1111 · NIIN 015181111 · Part number 45-20174
Senior Operations Llc Dba Metal Bellows Div Metal Bellows · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 07649
Government record, cited
NSN 4720-01-518-1111 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-518-1111. Manufacturer of record part number: 45-20174.
Also searched as4720-01-518-1111 ·
4720015181111 ·
NIIN 015181111 ·
01-518-1111 ·
FSC 4720 Hose and Flexible Tubing · CAGE 07649 · 45-20174
Manufacturer of record: Senior Operations Llc Dba Metal Bellows Div Metal Bellows
Identification
NSN: 4720-01-518-1111
NIIN: 015181111
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 45-20174
Manufacturer: Senior Operations Llc Dba Metal Bellows Div Metal Bellows
General Description
The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-518-1111, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Senior Operations Llc Dba Metal Bellows Div Metal Bellows. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
4720-01-518-1111
Primary Part Number
45-20174
Item Name
Hose Assembly,air Breathing
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
Manufacturer
Senior Operations Llc Dba Metal Bellows Div Metal Bellows
Senior Operations Llc Dba Metal Bellows Div Metal Bellows (USA)
Reference documents
Reference
Meaning
45-20174
3/9Design control — primary reference
Senior Flexonics Inc
No interchangeability data on file.
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 4720-01-518-1111?
NSN 4720-01-518-1111 is a Hose Assembly,air Breathing, manufactured by Senior Operations Llc Dba Metal Bellows Div Metal Bellows, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What part numbers are listed for NSN 4720-01-518-1111?
NSN 4720-01-518-1111 has 1 manufacturer part number on file: 45-20174 (Senior Operations Llc Dba Metal Bellows Div Metal Bellows).
What are the specifications of 45-20174?
Key specifications for 45-20174: Part Name Assigned by Controlling Agency: HOSE ASSEMBLY, OXYGEN; End Item Identification: TRISTAR AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4720-01-518-1111 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.