# NSN 9390-01-737-4134: Bellows, Protection

NSN 9390-01-737-4134 (also written 9390017374134; NIIN 01-737-4134) is a bellows, protection in Federal Supply Class 9390, Miscellaneous Fabricated Nonmetallic Materials. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 9390-01-737-4134 (9390017374134)
- NIIN: 01-737-4134 (017374134)
- Item name: BELLOWS,PROTECTION
- Federal Supply Class: [FSC 9390 Miscellaneous Fabricated Nonmetallic Materials](https://nsnexplorer.com/fsc/9390/)
- Federal Supply Group: [FSG 93](https://nsnexplorer.com/group/93/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABJH | TEMP RATING | FAHRENHEIT -65.0 AND FAHRENHEIT 250.0 |
| AGAV | END ITEM IDENTIFICATION | UUT ADAPTER |
| BCCH | END OUTSIDE DIAMETER | INCHES MINIMUM 2.23 AND INCHES MAXIMUM 2.32 |
| CPYG | END INSIDE DIAMETER | INCHES NOMINAL 1.26 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | BELLOWS, COVER |
| FEAT | SPECIAL FEATURES | ITEM IS BLACK IN COLOR |
| MATT | MATERIAL | GLASS FIBER AND SILICONE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 12-233145 | 54787 | THERMAL STRUCTURES, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NGB504AN | 1SFN4 | NORTHROP GRUMMAN SYSTEMS CORP INTEGRATED SYSTEMS SECTOR | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NGB504AN19 | 1SFN4 | NORTHROP GRUMMAN SYSTEMS CORP INTEGRATED SYSTEMS SECTOR | [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=9390017374134&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=9390017374134
- 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/9390-01-737-4134/
JSON: https://nsnexplorer.com/api/nsn/9390-01-737-4134.json