# NSN 4720-01-306-1028: Hose, Air Duct

NSN 4720-01-306-1028 (also written 4720013061028; NIIN 01-306-1028) is a hose, air duct in Federal Supply Class 4720, Hose and Flexible Tubing. 4 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4720-01-306-1028 (4720013061028)
- NIIN: 01-306-1028 (013061028)
- Item name: HOSE,AIR DUCT
- Federal Supply Class: [FSC 4720 Hose and Flexible Tubing](https://nsnexplorer.com/fsc/4720/)
- Federal Supply Group: [FSG 47](https://nsnexplorer.com/group/47/)
- Acquisition method suffix code: AMSC L: annual buy value is below the screening threshold. (observed 2026-10-23)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AAGT | WALL THICKNESS | INCHES MINIMUM 0.020 AND INCHES MAXIMUM 0.060 |
| AARX | INSIDE DIAMETER | FIRST END INCHES NOMINAL 0.750 |
| ACKH | MINIMUM INSIDE BENDING RADIUS | INCHES 0.750 |
| AGQM | END OVERALL LENGTH | FIRST END INCHES NOMINAL 1.000 |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | FIRST END SOFT |
| CPYG | END INSIDE DIAMETER | FIRST END INCHES NOMINAL 0.750 |
| CQQF | OPERATING PRESSURE | EXTERNAL POUNDS PER SQUARE INCH (PSI) NOMINAL 6.0 |
| CQQF | OPERATING PRESSURE | LOCATION NOT OTHERWISE SPECIFIED POUNDS PER SQUARE INCH (PSI) MAXIMUM 12.0 |
| CRXX | MEASURING METHOD AND LENGTH | INCHES NOMINAL OVERALL 5.000 |
| FEAT | SPECIAL FEATURES | NOMEX FABRIC PLIES,NONMETALLIC HELICAL WIRE REINFORCEMENT ZYTEL 103 |
| MATT | MATERIAL | SECOND PLY PLASTIC POLYAMIDE NYLON |
| MATT | MATERIAL | FIRST PLY PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 713426-.75-020-4 | 70628 | ARROWHEAD PRODUCTS CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 713426-.75-20-4 | 70628 | ARROWHEAD PRODUCTS CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C9601 | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C9601-3-020S | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4720013061028&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4720013061028
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/4720-01-306-1028/
JSON: https://nsnexplorer.com/api/nsn/4720-01-306-1028.json