The Liner,crankshaft Flyweight, cataloged under National Stock Number 2810-00-591-8221, is classified within Federal Supply Class 2810 (Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2810-00-591-8221 |
| Primary Part Number | 100198P5 |
| Item Name | Liner,crankshaft Flyweight |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| General Characteristics Item Description | MATL STEEL PER AMS 6440; HARDNESS PER ROCKWELL C55 MIN AND C58 MAX; 2.031 IN. LONG; BODY 3.7570 IN. MIN AND 3.7578 IN. MAX OD; FLANGE 3.862 IN. MIN AND 3.866 IN. MAX OD; BORE 0.75 IN. DIA; COUNTERBORE 3.382 IN. MIN AND 3.392 IN. MAX DIA BY 1.855 IN. DEEP IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 100198P5 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| 100198P005 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| AS100198P5 | 5/9 Secondary reference Aircraft Supplies |
| 100198P5 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 100198P005 | 5/9 Secondary reference Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
NSN 2810-00-591-8221 is a Liner,crankshaft Flyweight, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-00-591-8221 has 1 manufacturer part number on file: 100198P5 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 100198P5: General Characteristics Item Description: MATL STEEL PER AMS 6440; HARDNESS PER ROCKWELL C55 MIN AND C58 MAX; 2.031 IN. LONG; BODY 3.7570 IN. MIN AND 3.7578 IN. MAX OD; FLANGE 3.862 IN. MIN AND 3.866 IN. MAX OD; BORE 0.75 IN. DIA; COUNTERBORE 3.382 IN. MIN AND 3.392 IN. MAX DIA BY 1.855 IN. DEEP IN; End Item Identification: ACFT ENG,RECIPROCATING. 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.
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.