# NSN 5305-01-539-5850: Screw, Close Tolerance

NSN 5305-01-539-5850 (also written 5305015395850; NIIN 01-539-5850) is a screw, close tolerance in Federal Supply Class 5305, Screws. 9 manufacturer part numbers from 9 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5305-01-539-5850 (5305015395850)
- NIIN: 01-539-5850 (015395850)
- Item name: SCREW,CLOSE TOLERANCE
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-13)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.531 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 1.156 |
| AASK | HEAD STYLE | — |
| AASL | HEAD DIAMETER | INCHES NOMINAL 0.429 |
| AAUR | GRIP DIAMETER | INCHES MINIMUM 0.311 AND INCHES MAXIMUM 0.312 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.312 |
| ANEE | GRIP LENGTH | INCHES NOMINAL 0.625 |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 125000 |
| CRSQ | COUNTERSINK ANGLE | DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW-CLOSE TOLERANCE 100 DEG COUNTERSUNK REDUCED HEAD, HI-TORQUE, NON MAGNETIC CRES, IVD ALUMINUM COATED |
| FEAT | SPECIAL FEATURES | LUBRICANT- CETYL ALCOHOL |
| MATT | MATERIAL | OVERALL NICKEL ALLOY 718 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE A-S 5662 |
| SFTT | SURFACE TREATMENT | OVERALL ALUMINUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE -IL-DTL-83488 TY 2 CLS 3 |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 3M927-5L10 | 007R1 | TWIST TITE MFG, INC DBA TWIST TITE MANUFACTURING INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3M927-5L10 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3M927-5L10 | 76301 | THE BOEING COMPANY DIV DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HT4069-5-10A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HT4069-5-10A | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HT4069-5-10A | 73197 | HI-SHEAR CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HT4069-5-10A | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HT4069-5-10A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| WC4069-5-10 | 60516 | WEST COAST AEROSPACE, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A6-27-T-3096 | 110 | 2026-10-20 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305015395850&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305015395850&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015395850
- 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/5305-01-539-5850/
JSON: https://nsnexplorer.com/api/nsn/5305-01-539-5850.json