# NSN 2840-01-100-1680: Seal, Air, Aircraft Gas Turbine En

NSN 2840-01-100-1680 (also written 2840011001680; NIIN 01-100-1680) is a seal, air, aircraft gas turbine en in Federal Supply Class 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. 9 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2840-01-100-1680 (2840011001680)
- NIIN: 01-100-1680 (011001680)
- Item name: SEAL,AIR,AIRCRAFT GAS TURBINE EN
- Federal Supply Class: [FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components](https://nsnexplorer.com/fsc/2840/)
- Federal Supply Group: [FSG 28](https://nsnexplorer.com/group/28/)
- Acquisition method suffix code: AMSC B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABJH | TEMP RATING | FAHRENHEIT -65.0 AND FAHRENHEIT 350.0 |
| CRTL | CRITICALITY CODE JUSTIFICATION | SUPP |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAL, FLANGED, ENCASED, AXIS B |
| FEAT | SPECIAL FEATURES | OPERATING CONDITIONS: 29000 RPM; OPERATING PRESSURE DIFFERENTIAL OIL TO AIR (PSIG) 5-10;SEALED FLUID PER MIL-L-7808 AND MIL-L-23699;SEAL OUTSIDE DIAMETER: 1.65" MAXIMUM; SEAL INSIDE DIAMETER: .958" MINIMUM;RUBBING FACE WIDTH 9RADIAL): .06" REFERENCE; SEAL FREE LENGTH: .245" MINIMUM; SEAL OPERATING LENGTH: .18-.22"; SPRING TYPE: WAVE; ANTI-ROTATIONAL KEY RADIAL ENGAGEMENT: .046 MINIMUM; LENGTH OF ENGAGEMENT:.210 MINIMUM AT MAXIMUM OPERATING LENGTH; OVERLAP OF KEY TO CARRIER (BOTH ENDS):.101" MINIMUM; MATERIALS: AMS 4116 OR 4117;SECONDARY SEAL: AMS 7280; KEY ATTACHMENT: INTEGRAL WITH CASING |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |
| SUPP | SUPPLEMENTARY FEATURES | FLIGHT SAFETY CRITICAL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1-1038-2 | 91587 | REXNORD INDUSTRIES, LLC DIV AEROSPACE SOLUTIONS DOWNERS GROVE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5034T70 | 99207 | GENERAL ELECTRIC COMPANY DBA GE AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5034T70P01 | 99207 | GENERAL ELECTRIC COMPANY DBA GE AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5034T70P01 | A0126 | LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5034T70P04 | 99207 | GENERAL ELECTRIC COMPANY DBA GE AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5034T70P04 | A0126 | LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5330PL0298074 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 55496 | 77842 | EATON CORPORATION DBA EATON INOAC DIV EATON | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D55496 | 77842 | EATON CORPORATION DBA EATON INOAC DIV EATON | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-17 | [SPE4A725D0299/SPE4A726F060H](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2840011001680) | SEAL, AIR, AIRCRAFT GAS TURBINE ENGINE | EATON CORPORATION DBA EATON INOAC DIV EATON | $32,678.10 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2840011001680&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2840011001680
- 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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