# NSN 4730-00-639-9023: Adapter, Straight, Flange To Tube

NSN 4730-00-639-9023 (also written 4730006399023; NIIN 00-639-9023) is an adapter, straight, flange to tube in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 8 manufacturer part numbers from 5 suppliers are on record. The government has 2 open solicitations for it.

## Identification

- NSN: 4730-00-639-9023 (4730006399023)
- NIIN: 00-639-9023 (006399023)
- Item name: ADAPTER,STRAIGHT,FLANGE TO TUBE
- Federal Supply Class: [FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings](https://nsnexplorer.com/fsc/4730/)
- Federal Supply Group: [FSG 47](https://nsnexplorer.com/group/47/)
- Acquisition method suffix code: AMSC T: handled under qualified products list procedures. (observed 2026-10-28)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CWDL | RAISED FACE NOMINAL DIAMETER | SECOND END INCHES 2.123 |
| AKGG | NOMINAL LENGTH | SECOND END INCHES 2.375 |
| CQRB | SEAT ANGLE | FIRST END DEGREES 37.0 |
| CWCK | NOMINAL THICKNESS | SECOND END INCHES 0.297 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | SECOND END INCHES 0.271 |
| CWDC | CENTER TO CENTER NOMINAL DISTANCE BETWEEN BOLT HOLES ALONG WIDTH | SECOND END INCHES 1.812 |
| CWDF | FLANGE FACE DESIGN | SECOND END RAISED STRAIGHT |
| CWDH | RAISED FACE NOMINAL HEIGHT | SECOND END INCHES 0.015 |
| ARKN | FLANGE SHAPE | SECOND END RECTANGULAR WITH HOLES |
| AWLS | CONNECTION TYPE | FIRST END THREADED EXTERNAL TUBE |
| AWLS | CONNECTION TYPE | SECOND END FLANGE |
| ZZZK | SPECIFICATION/STANDARD DATA | PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 81343-AS4875 TO 1 |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 1.875 |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | FIRST END INCHES 1.500 |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 1.750 |
| MATT | MATERIAL | OVERALL ALUMINUM ALLOY |
| AAJD | THREAD CLASS | 3A |
| AECS | BOLT HOLE QUANTITY | 4 |
| AHNC | CONNECTION STYLE | — |
| AKGF | NOMINAL WIDTH | SECOND END INCHES 2.375 |
| SFTT | SURFACE TREATMENT | INSIDE ANODIZE |
| CWCY | CENTER TO CENTER NOMINAL DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | SECOND END INCHES 1.812 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | INSIDE MIL SPEC SINGLE TREATMENT RESPONSE -IL-A-8625,TY 2 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OUTSIDE MIL SPEC SINGLE TREATMENT RESPONSE -IL-A-8625,TYE 2 |
| THSD | THREAD SERIES DESIGNATOR | FIRST END UN |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| SFTT | SURFACE TREATMENT | OUTSIDE ANODIZE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-A-367 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| AN760D24 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS4875/1 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS4875/1 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS4875/1/D24 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS4875/1/D24 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-F-5509 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS20760-D24 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SAE-AS4875/1 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M5-27-T-1600 | 71 | 2026-11-09 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730006399023&category=nsn) |
| SPE7M4-27-T-2534 | 201 | 2026-11-16 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730006399023&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730006399023&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730006399023
- 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/4730-00-639-9023/
JSON: https://nsnexplorer.com/api/nsn/4730-00-639-9023.json