The Hose,air Duct, cataloged under National Stock Number 4720-01-083-5891, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flexfab Llc. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-083-5891 |
| Primary Part Number | SIK1024-101 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flexfab Llc |
| Status | ACTIVE |
| Measuring Method and Length | 70.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 0.880 INCHES IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | PREFORMED BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 1.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | OZONE RESISTANT |
| Inside Diameter | 1.750 INCHES NOMINAL FIRST END IN |
| End Overall Length | 0.750 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 1.750 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS REINFORCING CORD |
| Material | STEEL SECOND PLY |
| Material | COTTON AND PLASTIC POLYAMIDE NYLON AND RUBBER CHLOROPRENE CLASS CR FIRST PLY |
| Material | COTTON AND PLASTIC POLYAMIDE NYLON AND RUBBER CHLOROPRENE CLASS CR THIRD 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 |
|---|---|
| SIK1024-101 PRIMARY | Flexfab Llc (USA) |
| 61500-62322-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 61500-62322 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| S1K1024-101 | C/1 Advisory reference — outside the item-of-supply concept Flexfab Llc |
NSN 4720-01-083-5891 is a Hose,air Duct, manufactured by Flexfab Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-083-5891 has 2 manufacturer part numbers on file: SIK1024-101 (Flexfab Llc), 61500-62322-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SIK1024-101: Measuring Method and Length: 70.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 0.880 INCHES IN; Connection Style: ROUND BOTH ENDS; Connection Type: PREFORMED BOTH ENDS. 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.