# NSN 5325-01-243-3157: Ring, Retaining

NSN 5325-01-243-3157 (also written 5325012433157; NIIN 01-243-3157) is a ring, retaining in Federal Supply Class 5325, Fastening Devices. 3 manufacturer part numbers from 1 supplier are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5325-01-243-3157 (5325012433157)
- NIIN: 01-243-3157 (012433157)
- 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 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 |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AARX | INSIDE DIAMETER | INCHES MINIMUM 1.183 AND INCHES MAXIMUM 1.193 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 1.389 AND INCHES MAXIMUM 1.399 |
| ABMC | MAJOR THICKNESS | INCHES MINIMUM 0.0495 AND INCHES MAXIMUM 0.0505 |
| ALBY | USAGE DESIGN | SPRING RETAINER |
| MATT | MATERIAL | COPPER ALLOY 903 OR COPPER ALLOY 922 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED SPEC 1ST MATERIAL RESPONSE QQ-C-390 OR ASSN STD 2ND MATERIAL RESPONSE AST- B61 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| M1183/10 FIG. NO. 6-1/2 INCH | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-DTL-1183/10 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-F-1183/10 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-01 | [SPE4A623D5764/SPE7LX27F0284](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325012433157) | RING, RETAINING | — | $1,012.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5325012433157&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325012433157
- 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/5325-01-243-3157/
JSON: https://nsnexplorer.com/api/nsn/5325-01-243-3157.json