The Block, cataloged under National Stock Number 4310-00-147-3880, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 22 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Block |
| FSC / FSG | 4310 — Compressors and Vacuum Pumps (FSG 43) |
| Manufacturers | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (CAGE 830Q4) |
| Parameter | Value |
|---|---|
| NSN | 4310-00-147-3880 |
| Primary Part Number | 1990B |
| Item Name | Block |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1990B PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 114973PC508 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 114969PC508 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 107669PC508 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 107769PC508 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 107673PC508 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 107773PC508 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 107673PC508 | 5/9 Secondary reference U.S. Government activity |
| 107773PC508 | 5/9 Secondary reference U.S. Government activity |
| 90019PC508 | 5/9 Secondary reference U.S. Government activity |
| 107773PC508 | 5/9 Secondary reference U.S. Government activity |
| 107773PC508 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 107673PC508 | 5/9 Secondary reference U.S. Government activity |
| 114969PC508 | 5/9 Secondary reference U.S. Government activity |
| 1990B | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 107769PC508 | 5/9 Secondary reference U.S. Government activity |
| 90023PC508 | 5/9 Secondary reference U.S. Government activity |
| 107669PC508 | 5/9 Secondary reference U.S. Government activity |
| 114969PC508 | 5/9 Secondary reference U.S. Government activity |
| 107669PC508 | 5/9 Secondary reference U.S. Government activity |
| 114973PC508 | 5/9 Secondary reference U.S. Government activity |
| 107769PC508 | 5/9 Secondary reference U.S. Government activity |
| 1990B | 5/9 Secondary reference U.S. Government activity |
| 114973PC508 | 5/9 Secondary reference U.S. Government activity |
| 114969PC508 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 107673PC508 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 107769PC508 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4310-00-147-3880 is a Block, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-147-3880 has 7 manufacturer part numbers on file: 1990B (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 114973PC508 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 114969PC508 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 107669PC508 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 107769PC508 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions) and 2 more.
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.