The Hose,air Duct, cataloged under National Stock Number 4720-01-087-2747, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-087-2747 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Hose Weight | 5.000 OUNCES PER LINEAR FOOT OZ |
| Measuring Method and Length | 120.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 0.750 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | PREFORMED FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.220 INCHES NOMINAL IN |
| Operating Pressure | 4.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | OZONE RESISTANT |
| Inside Diameter | 0.969 INCHES NOMINAL FIRST END IN |
| End Overall Length | 0.880 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 0.859 INCHES NOMINAL FIRST END IN |
| Test Data Document | 81349-MIL-H-14506 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | RUBBER NATURAL SINGLE PLY |
| 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 |
|---|---|
| 2588375-4 | 3/2 Design control — primary reference U.S. Government activity |
| 2588375-4 | 5/9 Secondary reference Naval Sea Systems Command |
| 2588375 | D/9 Drawing number reference only U.S. Government activity |
NSN 4720-01-087-2747 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-119-3788, 4720-01-119-8120, 1560-01-645-4131. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-01-087-2747: Hose Weight: 5.000 OUNCES PER LINEAR FOOT OZ; Measuring Method and Length: 120.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 0.750 INCHES IN; Connection Style: ROUND FIRST END. 15 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.