PartsTable TECHNICAL DATA SHEET
NSN 4730-01-559-4111Government record, cited

Tee, Hose to Boss4730-01-559-4111

NSN 4730-01-559-4111 · NIIN 015594111 · Part number FP2173
Critical Solutions International, Llc · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 1N5S7
Government record, cited
NSN 4730-01-559-4111 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-559-4111. Manufacturer of record part number: FP2173.
Also searched as  4730-01-559-4111 · 4730015594111 · NIIN 015594111 · 01-559-4111 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 1N5S7 · FP2173
Nearby stock numbers  ·
Features
  • Tee,hose to Boss — FSC 4730
  • 1 manufacturer part number on file
  • Manufacturer of record: Critical Solutions International, Llc
Identification
  • NSN: 4730-01-559-4111
  • NIIN: 015594111
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: FP2173
  • Manufacturer: Critical Solutions International, Llc
General Description

The Tee,hose to Boss, cataloged under National Stock Number 4730-01-559-4111, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Critical Solutions International, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-559-4111
Primary Part NumberFP2173
Item NameTee,hose to Boss
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerCritical Solutions International, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
FP2173 PRIMARY Critical Solutions International, Llc (USA)
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE

Frequently Asked Questions

What is NSN 4730-01-559-4111?

NSN 4730-01-559-4111 is a Tee,hose to Boss, manufactured by Critical Solutions International, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-559-4111?

NSN 4730-01-559-4111 has 1 manufacturer part number on file: FP2173 (Critical Solutions International, Llc).

What are the specifications of FP2173?

Key specifications for FP2173: Special Features: R-THREAD HAS POLYTETRAFLUOROETHYLENE COATING AND UPPER PART CAN ROTATE 360 DEGREES; Part Name Assigned by Controlling Agency: TYPE QST PUSH-IN/THREADED T-FITTING; End Item Identification: ROUTE CLEARANCE - UNIQUE NSN - HUSKY. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-559-4111 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.
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