The Housing,seal,starter Generator D, cataloged under National Stock Number 2840-00-656-8523, 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 Rolls-Royce Deutschland Ltd & Co Kg. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-656-8523 |
| Primary Part Number | 1-080-274-01 |
| Item Name | Housing,seal,starter Generator D |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rolls-Royce Deutschland Ltd & Co Kg |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL AMS 6381,BLACK OXIDE FINISHAMS 2485,ROCKWELL C SCALE 23 MAX HARDNESS RATING,2 HOLES 0.159 IN. NOM DIA,6HOLES EQUALLY SPACED 0.213 IN. NOM DIA IN |
| 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 |
|---|---|
| 1-080-274-01 | Rolls-Royce Deutschland Ltd & Co Kg (DEU) |
| 1-080-274-01 | Baykar Piaggio Aerospace S.p.a. (ITA) |
| Reference | Meaning |
|---|---|
| 1-080-274-01 | 3/9 Design control — primary reference U.S. Government activity |
| 1-080-274-01 | C/1 Advisory reference — outside the item-of-supply concept Ozark Aeroworks Llc |
| 1-080-274-01 | 5/2 Secondary reference U.S. Government activity |
NSN 2840-00-656-8523 is a Housing,seal,starter Generator D, manufactured by Rolls-Royce Deutschland Ltd & Co Kg, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-656-8523 has 2 manufacturer part numbers on file: 1-080-274-01 (Rolls-Royce Deutschland Ltd & Co Kg), 1-080-274-01 (Baykar Piaggio Aerospace S.p.a.).
Key specifications for 1-080-274-01: General Characteristics Item Description: STEEL AMS 6381,BLACK OXIDE FINISHAMS 2485,ROCKWELL C SCALE 23 MAX HARDNESS RATING,2 HOLES 0.159 IN. NOM DIA,6HOLES EQUALLY SPACED 0.213 IN. NOM DIA IN; End Item Identification: T-53 SERIES ENGINES. 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 2840-00-656-8523 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.