The Diffuser,compressor, cataloged under National Stock Number 2840-01-037-9319, 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 Allison Transmission Inc Dba Allison Transmission, Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-037-9319 |
| Primary Part Number | 6851430 |
| Item Name | Diffuser,compressor |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,AMS5643 AND AMS5355,1.432 IN. NOM O/A LG,10.500 IN. NOM O/A OD,30 HOLES 0.226 IN. MIN,0.234 IN. MAX DIA THROUGH BODY EQUALLY SPACED ON 10.000 IN. NOM BOLT CIRCLE DIA,HOLES COUNTERSUNK 90 DEG PORM 5 DEG TO 0.325 IN. NOM DIA ON UNDERSIDE,12 HOLES 0.226 IN. MIN,0.234 IN. MAX DIA THROUGH BODY EQUALLY SPACED ON 7.870 IN. NOM BOLT CIRCLE DIA,HOLES COUNTERSUNK 90 DEG PORM 5 DEG TO 0.325 IN. NOM DIA ON UNDERSIDE,1.505 IN. MIN,1.506 IN. MAX ID 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 | F |
NSN 2840-01-037-9319 is a Diffuser,compressor, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-037-9319 has 2 manufacturer part numbers on file: 6851430 (Allison Transmission Inc Dba Allison Transmission, Inc), 6851430 (Rolls-Royce Corporation).
Key specifications for 6851430: General Characteristics Item Description: CRES,AMS5643 AND AMS5355,1.432 IN. NOM O/A LG,10.500 IN. NOM O/A OD,30 HOLES 0.226 IN. MIN,0.234 IN. MAX DIA THROUGH BODY EQUALLY SPACED ON 10.000 IN. NOM BOLT CIRCLE DIA,HOLES COUNTERSUNK 90 DEG PORM 5 DEG TO 0.325 IN. NOM DIA ON UNDERSIDE,12 HOLES 0.226 IN. MIN,0.234 IN. MAX DIA THROUGH BODY EQUALLY SPACED ON 7.870 IN. NOM BOLT CIRCLE DIA,HOLES COUNTERSUNK 90 DEG PORM 5 DEG TO 0.325 IN. NOM DIA ON UNDERSIDE,1.505 IN. MIN,1.506 IN. MAX ID IN. 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 2840-01-037-9319 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.