# NSN 5325-00-598-4891: Ring, Retaining

NSN 5325-00-598-4891 (also written 5325005984891; NIIN 00-598-4891) is a ring, retaining in Federal Supply Class 5325, Fastening Devices. 6 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Feb 2026.

## Identification

- NSN: 5325-00-598-4891 (5325005984891)
- NIIN: 00-598-4891 (005984891)
- Item name: RING,RETAINING
- Federal Supply Class: [FSC 5325 Fastening Devices](https://nsnexplorer.com/fsc/5325/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)
- Acquisition method suffix code: AMSC B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-11-04)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ALME | MATERIAL HARDNESS RATING | ROCKWELL SUPERFICIAL 30-N MINIMUM 65.0 AND ROCKWELL SUPERFICIAL 30-N MAXIMUM 68.0 |
| MATT | MATERIAL | STEEL |
| SFTT | SURFACE TREATMENT | CADMIUM |
| ACXD | RING STYLE | — |
| ALBY | USAGE DESIGN | EXTERNAL |
| AWQD | STRENGTH RATING | POUNDS PER SQUARE INCH (PSI) MINIMUM TENSILE 220000.0 |
| ABKV | OUTSIDE DIAMETER | INCHES NOMINAL 0.735 |
| ABMC | MAJOR THICKNESS | INCHES NOMINAL 0.027 |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AARX | INSIDE DIAMETER | INCHES MINIMUM 0.621 AND INCHES MAXIMUM 0.629 |
| AASG | CASEHARDENING INDICATOR | NOT CASE-HARDENED |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 185290 | 04414 | RATCHFORD CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 185290 | 33823 | ADAMS INDUSTRIES INC A SUB OF BANNER INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 185290 | 52661 | RTX CORPORATION DIV PRATT & WHITNEY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 185290 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 185290 | 80756 | SPIROLOX INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 185290 77445 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-02-27 | [SPE4AX25D9000/SPE4AX26F7867](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325005984891) | RING, RETAINING | RTX CORPORATION DIV PRATT & WHITNEY | $10,032,972.03 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5325005984891&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325005984891
- 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/5325-00-598-4891/
JSON: https://nsnexplorer.com/api/nsn/5325-00-598-4891.json