# NSN 5305-01-691-2633: Screw, Cap, Hexagon Head

NSN 5305-01-691-2633 (also written 5305016912633; NIIN 01-691-2633) is a screw, cap, hexagon head in Federal Supply Class 5305, Screws. 1 manufacturer part number from 1 supplier is on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5305-01-691-2633 (5305016912633)
- NIIN: 01-691-2633 (016912633)
- Item name: SCREW,CAP,HEXAGON HEAD
- 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 R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-15)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.875 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 2.00 |
| AASK | HEAD STYLE | — |
| AASU | HEAD HEIGHT | INCHES MINIMUM 0.163 AND INCHES MAXIMUM 0.211 |
| AATB | WIDTH BETWEEN FLATS | INCHES MINIMUM 0.489 AND INCHES MAXIMUM 0.500 |
| AGAV | END ITEM IDENTIFICATION | 2330-01-603-3559 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.3125 |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | 5/16"-18X2" GRADE 8 ECOGUARD FINISH HEX CAP SCREW |
| MATT | MATERIAL | OVERALL STEEL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE GRADE 8 STEEL ER SAE J429 |
| SFTT | SURFACE TREATMENT | OVERALL ZINC AND ALUMINUM |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 11137249 | 0Y3H3 | FASTENAL COMPANY DBA FASTENAL CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A6-27-T-3839 | 121 | 2026-10-21 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305016912633&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305016912633&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016912633
- 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/5305-01-691-2633/
JSON: https://nsnexplorer.com/api/nsn/5305-01-691-2633.json