# NSN 5325-01-167-4378: Stud Assembly, Turnlock Fastener

NSN 5325-01-167-4378 (also written 5325011674378; NIIN 01-167-4378) is a stud assembly, turnlock fastener in Federal Supply Class 5325, Fastening Devices. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5325-01-167-4378 (5325011674378)
- NIIN: 01-167-4378 (011674378)
- 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 R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABMZ | DIAMETER | INCHES MINIMUM 0.377 AND INCHES MAXIMUM 0.384 |
| AGRD | TURNLOCK STUD HEAD STYLE | — |
| AGRE | STUD ASSEMBLY STYLE | — |
| AGRF | DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD | INCHES MINIMUM 0.493 AND INCHES MAXIMUM 0.503 |
| AGRH | EYELET OUTSIDE DIAMETER | INCHES NOMINAL 0.312 |
| AGRK | EYELET LENGTH | INCHES NOMINAL 0.250 |
| AKCV | DRIVE TYPE | CROSS RECESS |
| CQYY | STUD HEAD HEIGHT | INCHES NOMINAL 0.102 |
| FEAT | SPECIAL FEATURES | 0.913 IN. MIN 0.923 IN. MAX 2ND LG FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD |
| MATT | MATERIAL | OVERALL STEEL |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2,CL 2 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 40S8-4-18R | 71286 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 40S8-4-18R | 72186 | UNIVERSAL ENGRAVING AND COLOR PLATE CO ENGINEER SPECIALTIES DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-28 | [SPE4A626PSSS9](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325011674378) | STUD ASSEMBLY, TURNL | BOEING DISTRIBUTION SERVICES X, INC. | $2,772.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5325011674378&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325011674378
- 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/5325-01-167-4378/
JSON: https://nsnexplorer.com/api/nsn/5325-01-167-4378.json