# NSN 4720-00-555-1845: Hose Assembly, Air Duct

NSN 4720-00-555-1845 (also written 4720005551845; NIIN 00-555-1845) is a hose assembly, air duct in Federal Supply Class 4720, Hose and Flexible Tubing. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4720-00-555-1845 (4720005551845)
- NIIN: 00-555-1845 (005551845)
- Item name: HOSE ASSEMBLY,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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AARX | INSIDE DIAMETER | FIRST END INCHES NOMINAL 4.720 |
| AMPY | HOSE WEIGHT | OUNCES PER LINEAR FOOT 11.280 |
| AWLS | CONNECTION TYPE | SECOND END COUPLING |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| CRXX | MEASURING METHOD AND LENGTH | INCHES NOMINAL OVERALL 2.500 |
| STYL | STYLE DESIGNATOR | — |
| AAGT | WALL THICKNESS | INCHES NOMINAL 0.500 |
| CBBL | FEATURES PROVIDED | OZONE RESISTANT |
| CXMG | COUPLING STYLE | — |
| MATT | MATERIAL | FIRST PLY FIBERGLASS AND RUBBER SILICONE CLASS Q |
| MATT | MATERIAL | SECOND PLY FIBERGLASS AND RUBBER SILICONE CLASS Q |
| AWLS | CONNECTION TYPE | FIRST END COUPLING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 711128 | 70628 | ARROWHEAD PRODUCTS CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 711128 | 76680 | FEDERAL-MOGUL CORP CHASSIS PRODUCTS DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-16 | $2,614.00 | 7 | S3 AERODEFENSE LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4720005551845) |
| 2026-08-13 | $3,064.00 | 4 | S3 AERODEFENSE LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4720005551845) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-16 | [SPE7M427V0340](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4720005551845) | HOSE ASSEMBLY, AIR DUCT | S3 AERODEFENSE LLC | $18,298.00 |
| 2026-08-13 | [SPE7M426V5141](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4720005551845) | HOSE ASSEMBLY, AIR DUCT | S3 AERODEFENSE LLC | $12,256.00 |
| 2026-08-05 | [SPE7M426V4993](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4720005551845) | HOSE ASSEMBLY, AIR DUCT | S3 AERODEFENSE LLC | $33,990.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4720005551845&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4720005551845
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/4720-00-555-1845/
JSON: https://nsnexplorer.com/api/nsn/4720-00-555-1845.json