# NSN 1560-01-684-1845: Longeron

NSN 1560-01-684-1845 (also written 1560016841845; NIIN 01-684-1845) is a longeron in Federal Supply Class 1560, Airframe Structural Components. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 1560-01-684-1845 (1560016841845)
- NIIN: 01-684-1845 (016841845)
- Item name: LONGERON
- Federal Supply Class: [FSC 1560 Airframe Structural Components](https://nsnexplorer.com/fsc/1560/)
- Federal Supply Group: [FSG 15](https://nsnexplorer.com/group/15/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-27)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CRTL | CRITICALITY CODE JUSTIFICATION | AGAV |
| CZEK | AIRCRAFT MISSION DESIGN SERIES | KC130-J |
| AGAV | END ITEM IDENTIFICATION | KC130-J SYSTEM |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | LONGERON ASSEMBLY - AFT FUS LOWER |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 342986-19 | 0FRC8 | FORREST MACHINING LLC DBA FMI AEROSTRUCTURES | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 342986-19 | 23162 | FRAZIER AVIATION INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 342986-19 | 98897 | LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-02 | [SPE4A726P0422](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1560016841845) | LONGERON | FORREST MACHINING LLC DBA FMI AEROSTRUCTURES | $485,742.78 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1560016841845&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1560016841845
- 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/1560-01-684-1845/
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