The Hose,air Duct, cataloged under National Stock Number 4720-01-305-8370, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-305-8370 |
| Primary Part Number | 11187-201-1 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Kirkhill, Inc. Dba Kirkhill Inc |
| Status | ACTIVE |
| Measuring Method and Length | 15.596 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | PREFORMED BOTH ENDS |
| Style Designator | FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.048 INCHES NOMINAL IN |
| Inside Diameter | 3.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.000 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 3.000 INCHES NOMINAL BOTH ENDS IN |
| Material | RUBBER SYNTHETIC ALL PLIES |
| 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 |
|---|---|
| 11187-201-1 PRIMARY | Kirkhill, Inc. Dba Kirkhill Inc (USA) |
| Reference | Meaning |
|---|---|
| 11187-201-001 | 5/9 Secondary reference Herman H Sticht Company, Inc Dba Megohmer Vibrating Reed & Standco |
NSN 4720-01-305-8370 is a Hose,air Duct, manufactured by Kirkhill, Inc. Dba Kirkhill Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-305-8370 has 1 manufacturer part number on file: 11187-201-1 (Kirkhill, Inc. Dba Kirkhill Inc).
Key specifications for 11187-201-1: Measuring Method and Length: 15.596 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: PREFORMED BOTH ENDS; Style Designator: FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS. 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.