# NSN 4921-01-573-0428: Test Set, Torpedo

NSN 4921-01-573-0428 (also written 4921015730428; NIIN 01-573-0428) is a test set, torpedo in Federal Supply Class 4921, Torpedo Maintenance, Repair, and Checkout Specialized Equipment. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4921-01-573-0428 (4921015730428)
- NIIN: 01-573-0428 (015730428)
- Item name: TEST SET,TORPEDO
- Federal Supply Class: [FSC 4921 Torpedo Maintenance, Repair, and Checkout Specialized Equipment](https://nsnexplorer.com/fsc/4921/)
- Federal Supply Group: [FSG 49](https://nsnexplorer.com/group/49/)
- Acquisition method suffix code: AMSC G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 5.000 |
| ABMZ | DIAMETER | INCHES NOMINAL 1.500 |
| FEAT | SPECIAL FEATURES | KNURLED GRIP; ROUND WITH FLATTED SIDES; 1.35 IN. FLAT TO FLAT DISTANCE |
| FTLD | FUNCTIONAL DESCRIPTION | USED TO INSTALL IDLER GEAR LOWER BEARING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 8166369 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-17 | $800.00 | 4 | 6C9V9 | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4921015730428) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-17 | [SPE4A626V376T](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4921015730428) | TEST SET, TORPEDO | — | $3,200.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4921015730428&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4921015730428
- 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/4921-01-573-0428/
JSON: https://nsnexplorer.com/api/nsn/4921-01-573-0428.json