# NSN 4310-00-364-6580: Ring, Piston

NSN 4310-00-364-6580 (also written 4310003646580; NIIN 00-364-6580) is a ring, piston in Federal Supply Class 4310, Compressors and Vacuum Pumps. 2 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 4310-00-364-6580 (4310003646580)
- NIIN: 00-364-6580 (003646580)
- Item name: RING,PISTON
- Federal Supply Class: [FSC 4310 Compressors and Vacuum Pumps](https://nsnexplorer.com/fsc/4310/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- Acquisition method suffix code: AMSC L: annual buy value is below the screening threshold. (observed 2026-10-13)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ACXF | RADIAL WALL THICKNESS | INCHES MINIMUM 0.1250 AND INCHES MAXIMUM 0.1350 |
| ACXD | RING STYLE | — |
| ACXZ | STANDARD BORE DIAMETER | INCHES 2.400 |
| FEAT | SPECIAL FEATURES | DRY FILM LUBE EMS 52402,TYPE 1,CLASS B,FSCM 99193 |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| ACXJ | OVERALL WIDTH | INCHES MINIMUM 0.0370 AND INCHES MAXIMUM 0.0380 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-25043 TYE 17-7H AND ASSN STD 2ND MATERIAL RESPONSE A-S 5528 |
| ADTE | JOINT STYLE | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 859989-41 | 59364 | HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 859989-41 | 99121 | PRECISION RINGS INCORPORATED | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M1-27-T-0521 | 50 | 2026-10-23 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310003646580&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310003646580&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310003646580
- 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/4310-00-364-6580/
JSON: https://nsnexplorer.com/api/nsn/4310-00-364-6580.json