The Ring,air Seal, cataloged under National Stock Number 2840-01-065-6526, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-065-6526 |
| Primary Part Number | 768778 |
| Item Name | Ring,air Seal |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | CRES AMS5627;0.660 MIN,0.700 MAX IN. LG;0.440 MIN,0.460 MAX IN. LG FROM 1ST END TO FLANGE;0.060 MIN,0.070 MAX IN. LG FLANGE;14.603 MIN,14.607 MAX IN. OD 1ST END;15.545 MIN,15.555 MAX IN. DIA AROUND FLANGE;14.510 MIN,14.520 MAX IN. OD 2ND END;PART OF 3RD STAGE COMPRESSOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 768778 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 2840-01-065-6526 is a Ring,air Seal, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-065-6526 has 1 manufacturer part number on file: 768778 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 768778: General Characteristics Item Description: CRES AMS5627;0.660 MIN,0.700 MAX IN. LG;0.440 MIN,0.460 MAX IN. LG FROM 1ST END TO FLANGE;0.060 MIN,0.070 MAX IN. LG FLANGE;14.603 MIN,14.607 MAX IN. OD 1ST END;15.545 MIN,15.555 MAX IN. DIA AROUND FLANGE;14.510 MIN,14.520 MAX IN. OD 2ND END;PART OF 3RD STAGE COMPRESSOR; End Item Identification: TF30 ENG. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 2840-01-065-6526 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.