The Hose,air Duct, cataloged under National Stock Number 4720-01-252-7887, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4720-01-252-7887 |
| Primary Part Number | 5266K55 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Measuring Method and Length | 300.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 2.500 INCHES IN |
| Connection Type | PLAIN BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 22.0 KILOGRAMS PER SQUARE CENTIMETER MAXIMUM KG |
| Inside Diameter | 3.000 INCHES NOMINAL FIRST END IN |
| Material | PLASTIC POLYAMIDE NYLON SECOND PLY |
| Material | RUBBER CHLOROPRENE CLASS CR AND PLASTIC POLYAMIDE NYLON FIRST PLY |
| 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 |
|---|---|
| 5266K55 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 000-8006-396 | 5/2 Secondary reference U.S. Government activity |
NSN 4720-01-252-7887 is a Hose,air Duct, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-252-7887 has 1 manufacturer part number on file: 5266K55 (Mcmaster-Carr Supply Co).
Key specifications for 5266K55: Measuring Method and Length: 300.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 2.500 INCHES IN; Connection Type: PLAIN BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 9 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.