# NSN 5305-01-588-9321: Screw, Shoulder

NSN 5305-01-588-9321 (also written 5305015889321; NIIN 01-588-9321) is a screw, shoulder in Federal Supply Class 5305, Screws. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5305-01-588-9321 (5305015889321)
- NIIN: 01-588-9321 (015889321)
- Item name: SCREW,SHOULDER
- Federal Supply Class: [FSC 5305 Screws](https://nsnexplorer.com/fsc/5305/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)
- Acquisition method suffix code: AMSC Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | MILLIMETERS NOMINAL 6.0 |
| AASB | FASTENER LENGTH | MILLIMETERS MINIMUM 12.0 AND MILLIMETERS MAXIMUM 12.1 |
| AASK | HEAD STYLE | — |
| AASL | HEAD DIAMETER | MILLIMETERS NOMINAL 10.0 |
| AASU | HEAD HEIGHT | MILLIMETERS NOMINAL 5.0 |
| AATN | SHOULDER DIAMETER | OVERALL MILLIMETERS MINIMUM 5.7 AND MILLIMETERS MAXIMUM 6.0 |
| AATX | SHOULDER LENGTH | OVERALL MILLIMETERS MINIMUM 6.0 AND MILLIMETERS MAXIMUM 6.1 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AGAV | END ITEM IDENTIFICATION | 6115-01-561-7329 GENERATOR SET, DIESEL ENGINE |
| AHYM | NOMINAL THREAD DIAMETER | MILLIMETERS 5.0 |
| ASDB | WIDTH ACROSS FLATS | MILLIMETERS NOMINAL 3.0 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 90000 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL B MINIMUM 65.0 |
| CQQR | THREAD PITCH IN MILLIMETERS | 0.8 |
| CQWR | EXTERNAL THREAD TOLERANCE CLASS | 6G |
| CWYB | SHOULDER SHAPE | OVERALL ROUND |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SHOULDER SCREW, 18-8 STAINLESS STEEL |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| THSD | THREAD SERIES DESIGNATOR | M |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 04-21164 | 30554 | DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 90278A331 | 3A054 | MCMASTER-CARR SUPPLY CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-17 | [SPE4A622D5625/SPE4A626F458J](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015889321) | SCREW, SHOULDER | ALLIED TOOLS, INC | $854.75 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305015889321&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015889321
- 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/5305-01-588-9321/
JSON: https://nsnexplorer.com/api/nsn/5305-01-588-9321.json