# NSN 4530-01-257-1388: Control Block Assem

NSN 4530-01-257-1388 (also written 4530012571388; NIIN 01-257-1388) is a control block assem in Federal Supply Class 4530, Fuel Burning Equipment Units. 3 manufacturer part numbers from 1 supplier are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4530-01-257-1388 (4530012571388)
- NIIN: 01-257-1388 (012571388)
- Item name: CONTROL BLOCK ASSEM
- Federal Supply Class: [FSC 4530 Fuel Burning Equipment Units](https://nsnexplorer.com/fsc/4530/)
- Federal Supply Group: [FSG 45](https://nsnexplorer.com/group/45/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 950M | 11440 | GE STEAM POWER INC DBA GE STEAM POWER, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| E-171-820 | 11440 | GE STEAM POWER INC DBA GE STEAM POWER, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| E-171-820-R-J-I-950M | 11440 | GE STEAM POWER INC DBA GE STEAM POWER, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-08 | [SPE8E927P0033](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4530012571388) | CONTROL BLOCK ASSEM | HC MERCHANDISERS, INC. DBA HC MERCHANDISERS INC DIV HC PACIFIC | $22,712.94 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4530012571388&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4530012571388
- 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/4530-01-257-1388/
JSON: https://nsnexplorer.com/api/nsn/4530-01-257-1388.json