The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-150-2248, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Rhine Air, Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-150-2248 |
| Primary Part Number | NFRA-2X |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Rhine Air, Inc |
| Status | ACTIVE |
| Measuring Method and Length | 180.000 INCHES NOMINAL OVERALL IN |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material Document and Classification | ASTM 227,CLASS 1 ASSN STD 2ND MATERIAL RESPONSE REINFORCING WIRE |
| Material Document and Classification | ASTM-D-257 ASSN STD 1ST MATERIAL RESPONSE FIRST PLY |
| Cross-Sectional Shape Style | ROUND |
| Inside Diameter | 12.000 INCHES NOMINAL FIRST END IN |
| Coupling Locking Device Quantity | 2 BOTH ENDS |
| Material | STEEL REINFORCING WIRE |
| Material | COTTON AND RUBBER CHLOROPRENE CLASS CR FIRST PLY |
| Material | STEEL CORROSION RESISTING BOTH END COUPLINGS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| NFRA-2X PRIMARY | Rhine Air, Inc (USA) |
| Reference | Meaning |
|---|---|
| SEED P.D.NR.215 | 5/9 Secondary reference Kissell Refrigeration Corp |
| IT-8000 | 5/9 Secondary reference Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc |
NSN 4720-01-150-2248 is a Hose Assembly,air Duct, manufactured by Rhine Air, Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-150-2248 has 1 manufacturer part number on file: NFRA-2X (Rhine Air, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5996-01-535-0963. Verify interchangeability with system specifications before substitution.
Key specifications for NFRA-2X: Measuring Method and Length: 180.000 INCHES NOMINAL OVERALL IN; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED; Material Document and Classification: ASTM 227,CLASS 1 ASSN STD 2ND MATERIAL RESPONSE REINFORCING WIRE; Material Document and Classification: ASTM-D-257 ASSN STD 1ST MATERIAL RESPONSE FIRST PLY. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.