# NSN 5325-01-042-2999: Stud, Turnlock Fastener

NSN 5325-01-042-2999 (also written 5325010422999; NIIN 01-042-2999) is a stud, turnlock fastener in Federal Supply Class 5325, Fastening Devices. 2 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5325-01-042-2999 (5325010422999)
- NIIN: 01-042-2999 (010422999)
- Item name: STUD,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 |
| --- | --- | --- |
| AATQ | GRIP LENGTH | INCHES MAXIMUM 0.290 |
| ABMZ | DIAMETER | INCHES MINIMUM 0.490 |
| ADQB | SECURING DEVICE TYPE | RING |
| AGQY | TURNLOCK STUD SHANK STYLE | — |
| AGRC | EXTENSION LENGTH | INCHES NOMINAL 0.300 |
| AGRD | TURNLOCK STUD HEAD STYLE | — |
| AGSM | MATERIAL ACCOMMODATED THICKNESS | INCHES MINIMUM 0.221 AND INCHES MAXIMUM 0.290 |
| ALBJ | STUD THREAD SIZE AND SERIES/TYPE DESIGNATOR | UNF 0.250-28 |
| CSGB | STUD SHANK MAJOR DIAMETER | INCHES MINIMUM 0.3730 AND INCHES MAXIMUM 0.3745 |
| MATT | MATERIAL | OVERALL STEEL COMP 8740 OR STEEL COMP 4140 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-6049 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-5626 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TYE 2,CLAASS 2 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| CA17031-2HS | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| GS520BG2HS | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A6-27-T-8716 | 222 | 2026-11-13 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5325010422999&category=nsn) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-27 | [SPE4A627P1653](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325010422999) | STUD, TURNLOCK FASTE | WESCO AIRCRAFT HARDWARE CORP. DBA INCORA | $6,091.24 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5325010422999&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5325010422999
- 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/5325-01-042-2999/
JSON: https://nsnexplorer.com/api/nsn/5325-01-042-2999.json