The Air Cleaner,intake, cataloged under National Stock Number 4310-01-629-4075, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is The Lincoln Electric Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-629-4075 |
| Primary Part Number | K3972-3 |
| Item Name | Air Cleaner,intake |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | The Lincoln Electric Company |
| Status | ACTIVE |
| Width | 16.50 INCHES NOMINAL 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 |
|---|---|
| K3972-3 PRIMARY | The Lincoln Electric Company (USA) |
| Reference | Meaning |
|---|---|
| K3972-1 | 5/9 Secondary reference The Lincoln Electric Company |
| K2376-1 | 3/9 Design control — primary reference The Lincoln Electric Company |
NSN 4310-01-629-4075 is a Air Cleaner,intake, manufactured by The Lincoln Electric Company, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-629-4075 has 1 manufacturer part number on file: K3972-3 (The Lincoln Electric Company).
Key specifications for K3972-3: Overall Height: 28.75 INCHES NOMINAL IN; Special Features: 9 FT CORD W/ 15 AMP PLUG; 8 FT LENGTH X 1 3/4" O.D. EXTRACTION HOSE; LONGLIFE-H MAIN FILTER; HEPA FILTER; EXTRACTION SETTINGS 94 CFM & 135 CFM FT; Width: 16.50 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PORTABLE WELD FUME CONTROL UNIT. 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.