# NSN 4730-01-051-5256: Flange, Pipe

NSN 4730-01-051-5256 (also written 4730010515256; NIIN 01-051-5256) is a flange, pipe in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4730-01-051-5256 (4730010515256)
- NIIN: 01-051-5256 (010515256)
- Item name: FLANGE,PIPE
- 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 L: annual buy value is below the screening threshold. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABFF | FURNISHED ITEMS | BOLT |
| ABMD | RECESS DIAMETER | INCHES NOMINAL 1.781 |
| ABNM | THICKNESS | INCHES NOMINAL 0.696 |
| ABXN | SOCKET DEPTH | INCHES NOMINAL 0.293 |
| ACSU | NOMINAL PIPE SIZE FOR WHICH DESIGNED | INCHES 1.750 |
| ADUY | CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH | INCHES NOMINAL 1.031 |
| ADUZ | CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | INCHES NOMINAL 2.062 |
| ADVD | OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH | INCHES NOMINAL 0.339 |
| ADVE | OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH | INCHES NOMINAL 0.645 |
| AECS | BOLT HOLE QUANTITY | 4 |
| AFQN | FLANGE LENGTH | INCHES NOMINAL 2.740 |
| AGFF | FLANGE WIDTH | INCHES NOMINAL 2.320 |
| AHNX | BOLT HOLE DIAMETER | INCHES NOMINAL 0.406 |
| AJEM | FLANGE SECTION STYLE | — |
| AKWE | FACE SEATING SURFACE CONDITION | GROUND |
| MATT | MATERIAL | STEEL |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1P4577 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-25 | [SPE7LX21D0087/SPE7LX26FBB0E](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730010515256) | FLANGE, PIPE | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $21.70 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730010515256&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730010515256
- 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/4730-01-051-5256/
JSON: https://nsnexplorer.com/api/nsn/4730-01-051-5256.json