# NSN 5325-00-550-0045: Stud Assembly, Turnlock Fastener

NSN 5325-00-550-0045 (also written 5325005500045; NIIN 00-550-0045) is a stud assembly, turnlock fastener in Federal Supply Class 5325, Fastening Devices. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5325-00-550-0045 (5325005500045)
- NIIN: 00-550-0045 (005500045)
- Item name: STUD ASSEMBLY,TURNLOCK FASTENER
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| AKCV | DRIVE TYPE | CROSS RECESS |
| ABMZ | DIAMETER | INCHES MINIMUM 0.486 AND INCHES MAXIMUM 0.510 |
| AGRD | TURNLOCK STUD HEAD STYLE | — |
| AGRE | STUD ASSEMBLY STYLE | — |
| AGRK | EYELET LENGTH | INCHES MINIMUM 0.474 AND INCHES MAXIMUM 0.486 |
| AGSM | MATERIAL ACCOMMODATED THICKNESS | INCHES MINIMUM 0.358 AND INCHES MAXIMUM 0.457 |
| AGRF | DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD | INCHES MINIMUM 0.739 AND INCHES MAXIMUM 0.754 |
| MATT | MATERIAL | OVERALL STEEL |
| AGRH | EYELET OUTSIDE DIAMETER | INCHES MINIMUM 0.373 AND INCHES MAXIMUM 0.374 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 4S14-8 | 71286 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 50-043-1F8 | 97499 | BELL TEXTRON INC | [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=5325005500045&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325005500045
- 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/5325-00-550-0045/
JSON: https://nsnexplorer.com/api/nsn/5325-00-550-0045.json