The Hose,air Duct, cataloged under National Stock Number 4720-01-221-5351, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Flexfab Llc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-221-5351 |
| Primary Part Number | FLX100185002608 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Flexfab Llc |
| Status | ACTIVE |
| Features Provided | FUNGUS RESISTANT TREATMENT |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | PREFORMED BOTH ENDS |
| Operating Pressure | 0.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS |
| End Overall Length | 2.000 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 10.620 INCHES NOMINAL FIRST END IN |
| Measuring Method and Length | 6.500 INCHES NOMINAL OVERALL IN |
| Material | RUBBER SYNTHETIC ALL PLIES |
| Style Designator | SLEEVE SECTION |
| End Inside Diameter | 10.620 INCHES NOMINAL BOTH ENDS IN |
| Cross-Sectional Shape Style | ROUND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 11833-3 | Hdt Expeditionary Systems Inc (USA) |
| 11833 | Drs Environmental Systems Inc (USA) |
| 11833-3 | Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA) |
| 11833 | Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA) |
| FLX100185002608 PRIMARY | Flexfab Llc (USA) |
| 11833-3 | Drs Environmental Systems Inc (USA) |
NSN 4720-01-221-5351 is a Hose,air Duct, manufactured by Flexfab Llc, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-01-221-5351 has 6 cross-referenced part numbers: 11833-3 (Hdt Expeditionary Systems Inc), 11833 (Drs Environmental Systems Inc), 11833-3 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 11833 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), FLX100185002608 (Flexfab Llc) and 1 more.
There are 9 known substitutes for 4720-01-221-5351: 4730-00-022-2457, 5360-00-312-6069, 2540-00-371-6123 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for FLX100185002608: Features Provided: FUNGUS RESISTANT TREATMENT; Connection Style: ROUND BOTH ENDS; Connection Type: PREFORMED BOTH ENDS; Operating Pressure: 0.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS. 13 total characteristics are documented in the Federal Logistics Information System.