The Heater Assembly,air, cataloged under National Stock Number 2990-00-074-1948, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Rolls-Royce Solutions America 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-074-1948 |
| Primary Part Number | 5109495 |
| Item Name | Heater Assembly,air |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,3.020 IN.O/A LG,3.395 IN.W,0.300 IN.FLANGE 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 |
|---|---|
| 5109495 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
| PC5109495 | Power Components (deutschland) Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 5109495 | 5/9 Secondary reference General Motors Corp |
| 2990000741948 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 2990-00-074-1948 is a Heater Assembly,air, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-074-1948 has 2 manufacturer part numbers on file: 5109495 (Rolls-Royce Solutions America Inc), PC5109495 (Power Components (deutschland) Gmbh).
Key specifications for 5109495: General Characteristics Item Description: STEEL,3.020 IN.O/A LG,3.395 IN.W,0.300 IN.FLANGE IN; End Item Identification: 2350-00-873-5408. 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.