The Cover,shipping,tachometer Mount, cataloged under National Stock Number 2840-00-012-3277, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-012-3277 |
| Primary Part Number | PK255 |
| Item Name | Cover,shipping,tachometer Mount |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| General Characteristics Item Description | PLASTIC,YELLOW ANA BULLETIN 166 NO. 505 OR C. G. S. B. 1-GP-12 NO. 5-1,2.436 IN. MIN,2.516 IN. MAX LG,2.436 IN. MIN,2.516 IN. MAX W,0.250 IN. NOM THK,0.280 IN. MIN,0.320 IN. MAX RADIUS CORNERS,4 HOLES 0.280 IN. MIN,0.300 IN. MAX DIA ON 2.653 IN. BOLT CIRCLE DIA,5000 PSI MIN COMPRESSION STRENGTH,FUEL AND OIL RES,150 DEG F HEAT RES 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 |
|---|---|
| PK255 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| PK255 | 5/2 Secondary reference U.S. Government activity |
NSN 2840-00-012-3277 is a Cover,shipping,tachometer Mount, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-012-3277 has 1 manufacturer part number on file: PK255 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for PK255: General Characteristics Item Description: PLASTIC,YELLOW ANA BULLETIN 166 NO. 505 OR C. G. S. B. 1-GP-12 NO. 5-1,2.436 IN. MIN,2.516 IN. MAX LG,2.436 IN. MIN,2.516 IN. MAX W,0.250 IN. NOM THK,0.280 IN. MIN,0.320 IN. MAX RADIUS CORNERS,4 HOLES 0.280 IN. MIN,0.300 IN. MAX DIA ON 2.653 IN. BOLT CIRCLE DIA,5000 PSI MIN COMPRESSION STRENGTH,FUEL AND OIL RES,150 DEG F HEAT RES IN; End Item Identification: ENGINE PT6A. 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.