The Breather, cataloged under National Stock Number 4310-01-299-3911, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is W B Arnold Company, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Breather |
| FSC / FSG | 4310 — Compressors and Vacuum Pumps (FSG 43) |
| Manufacturers | W B Arnold Company, Inc. (CAGE 2H266) |
| Parameter | Value |
|---|---|
| NSN | 4310-01-299-3911 |
| Primary Part Number | 45630183 |
| Item Name | Breather |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | W B Arnold Company, Inc. |
| 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 |
|---|---|
| 45630183 PRIMARY | W B Arnold Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 45630183 | 5/9 Secondary reference Wartsila Water Systems Limited |
NSN 4310-01-299-3911 is a Breather, manufactured by W B Arnold Company, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-299-3911 has 1 manufacturer part number on file: 45630183 (W B Arnold Company, Inc.).
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.