# NSN 2520-01-251-4395: Ring, Support, Transmission

NSN 2520-01-251-4395 (also written 2520012514395; NIIN 01-251-4395) is a ring, support, transmission in Federal Supply Class 2520, Vehicular Power Transmission Components. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 2520-01-251-4395 (2520012514395)
- NIIN: 01-251-4395 (012514395)
- Item name: RING,SUPPORT,TRANSMISSION
- Federal Supply Class: [FSC 2520 Vehicular Power Transmission Components](https://nsnexplorer.com/fsc/2520/)
- Federal Supply Group: [FSG 25](https://nsnexplorer.com/group/25/)
- 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 |
| --- | --- | --- |
| ACXZ | STANDARD BORE DIAMETER | INCHES 14.076 |
| ACYA | BORE DIAMETER OVERSIZE | INCHES 0.480 |
| AGAV | END ITEM IDENTIFICATION | 2520-01-201-4784 |
| FEAT | SPECIAL FEATURES | 70 EXTERNAL INVOLUTE SPLINES |
| MATT | MATERIAL | OVERALL STEEL COMP 4140 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE SAE4140H OR ASSN STD SINGLE MATERIAL RESPONSE AST-A 304 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 11650255 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | [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=2520012514395&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2520012514395
- 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/2520-01-251-4395/
JSON: https://nsnexplorer.com/api/nsn/2520-01-251-4395.json