# NSN 4520-00-277-8339: Pipe, Air Conditioning-Heating

NSN 4520-00-277-8339 (also written 4520002778339; NIIN 00-277-8339) is a pipe, air conditioning-heating in Federal Supply Class 4520, Space and Water Heating Equipment. 8 manufacturer part numbers from 7 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4520-00-277-8339 (4520002778339)
- NIIN: 00-277-8339 (002778339)
- Item name: PIPE,AIR CONDITIONING-HEATING
- Federal Supply Class: [FSC 4520 Space and Water Heating Equipment](https://nsnexplorer.com/fsc/4520/)
- Federal Supply Group: [FSG 45](https://nsnexplorer.com/group/45/)
- Acquisition method suffix code: AMSC G: the government has a complete data package and the rights to use it. (observed 2026-11-01)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AZGK | CROSS-SECTIONAL DIAMETER | INCHES NOMINAL 4.000 |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | CLASS 1 AND SIZE 4 AND STYLE 4 |
| CQCF | CONSTRUCTION | SINGLE |
| AAJX | MATERIAL THICKNESS | INCHES 0.0149 |
| MATT | MATERIAL | STEEL |
| SHPE | SHAPE | ROUND |
| ABRY | LENGTH | INCHES NOMINAL 24.000 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 235E20 | 13305 | CAM FABRICATED SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 235E42-20 | 13305 | CAM FABRICATED SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 57026-1 | 31577 | JAEGER MACHINE CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 57026-1 | 86734 | CYCLOPS INDUSTRIES INC EMPIRE-DETROIT STEEL DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A-A=55536-004 | 58536 | FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MILP551 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MILP551 | 97537 | JUNIPER ELBOW CO. INC. DBA JUNIPER ELBOW CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SHT.MTL.4IN.DIA | 09098 | UNITED MCGILL CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4520002778339&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520002778339
- 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/4520-00-277-8339/
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