# NSN 5305-00-245-4591: Screw, Close Tolerance

NSN 5305-00-245-4591 (also written 5305002454591; NIIN 00-245-4591) is a screw, close tolerance in Federal Supply Class 5305, Screws. 13 manufacturer part numbers from 13 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5305-00-245-4591 (5305002454591)
- NIIN: 00-245-4591 (002454591)
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.190 |
| CSYM | SURFACE FINISH | THREADS MICROINCHES 32.0 |
| MATT | MATERIAL | OVERALL STEEL COMP E4340 OR STEEL COMP 8740 |
| AAJD | THREAD CLASS | 3A |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TY 2 CL 3 |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| AASL | HEAD DIAMETER | INCHES MINIMUM 0.337 AND INCHES MAXIMUM 0.383 |
| AAUR | GRIP DIAMETER | INCHES MINIMUM 0.1885 AND INCHES MAXIMUM 0.1895 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AASB | FASTENER LENGTH | INCHES MINIMUM 0.705 AND INCHES MAXIMUM 0.735 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5000 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-6049RJGCA-S 6322 |
| CRSQ | COUNTERSINK ANGLE | DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.345 |
| CSYM | SURFACE FINISH | GRIP MICROINCHES 32.0 |
| ANEE | GRIP LENGTH | INCHES MINIMUM 0.365 AND INCHES MAXIMUM 0.385 |
| AASK | HEAD STYLE | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| BACB30LU3-6 | 06710 | VALLEY-TODECO, INC. DBA ARCONIC FASTENING SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 06725 | SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 17446 | HUCK INTERNATIONAL, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 17943 | FEDERAL MANUFACTURING CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV CITY OF INDUSTRY OPERATIONS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 27624 | SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 57928 | SONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 81205 | THE BOEING COMPANY DIV DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BACB30LU3-6 | 97928 | HUCK INTL INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-22 | [SPE4A626P0W33](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305002454591) | SCREW, CLOSE TOLERAN | AERO-GLEN INTERNATIONAL LLC | $3,886.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305002454591&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305002454591
- 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.

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