The Hose,air Duct, cataloged under National Stock Number 4720-01-203-5453, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Kirkhill, Inc. Dba Kirkhill Inc. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-203-5453 |
| Primary Part Number | D5176-4 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Kirkhill, Inc. Dba Kirkhill Inc |
| Status | ACTIVE |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | FULLY CONVOLUTED |
| Cross-Sectional Shape Style | ROUND |
| Features Provided | STOWAGE DEVICE |
| Inside Diameter | 1.410 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 1.410 INCHES NOMINAL FIRST END IN |
| Material | RUBBER SILICONE CLASS Q FIRST PLY |
| Material | PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) SECOND PLY |
| Material | PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) THIRD PLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LE271-0074-0004 | The Boeing Company Div Legacy Am&m (USA) |
| D5176-4 PRIMARY | Kirkhill, Inc. Dba Kirkhill Inc (USA) |
NSN 4720-01-203-5453 is a Hose,air Duct, manufactured by Kirkhill, Inc. Dba Kirkhill Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-203-5453 has 2 manufacturer part numbers on file: LE271-0074-0004 (The Boeing Company Div Legacy Am&m), D5176-4 (Kirkhill, Inc. Dba Kirkhill Inc).
Key specifications for D5176-4: Connection Style: ROUND FIRST END; Connection Type: SOFT FIRST END; Style Designator: FULLY CONVOLUTED; Cross-Sectional Shape Style: ROUND. 11 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.
NSN 4720-01-203-5453 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.