The Hose,air Duct, cataloged under National Stock Number 4720-00-877-2852, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-877-2852 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 7.500 INCHES NOMINAL OVERALL IN |
| Inside Width | 1.500 INCHES NOMINAL FIRST END IN |
| Inside Length | 2.500 INCHES NOMINAL FIRST END IN |
| Connection Style | OVAL BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS |
| Material Document and Classification | MIL-Y-1140 MIL SPEC SINGLE MATERIAL RESPONSE REINFORCING CORD |
| Cross-Sectional Shape Style | OVAL |
| Wall Thickness | 0.050 INCHES NOMINAL IN |
| Operating Pressure | 4.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| End Inside Width | 1.600 INCHES NOMINAL BOTH ENDS IN |
| End Overall Length | 1.500 INCHES NOMINAL BOTH ENDS IN |
| End Inside Length | 2.500 INCHES NOMINAL BOTH ENDS IN |
| Material | STEEL AND COPPER ALLOY REINFORCING WIRE |
| Material | FIBERGLASS REINFORCING CORD |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR 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 |
| Reference | Meaning |
|---|---|
| 209-070-706-1 | 5/9 Secondary reference U.S. Government activity |
| 209-070-706 | D/9 Drawing number reference only U.S. Government activity |
| 209-070-706-001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-00-877-2852 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-00-877-2852: Measuring Method and Length: 7.500 INCHES NOMINAL OVERALL IN; Inside Width: 1.500 INCHES NOMINAL FIRST END IN; Inside Length: 2.500 INCHES NOMINAL FIRST END IN; Connection Style: OVAL BOTH ENDS. 16 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.