The Breather, cataloged under National Stock Number 3040-01-384-0820, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Regal-Beloit Corp Durst Div. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-384-0820 |
| Primary Part Number | T044000101 |
| Item Name | Breather |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Regal-Beloit Corp Durst Div |
| Status | ACTIVE |
| Outside Diameter | 1.110 INCHES MAXIMUM IN |
| Body Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 4400-101 | Regal-Beloit Corp Durst Div (USA) |
| T044000101 PRIMARY | Regal-Beloit Corp Durst Div (USA) |
| Reference | Meaning |
|---|---|
| A1199-1394 | 5/9 Secondary reference Regal-Beloit Corp Durst Div |
| 4400-101 | 5/9 Secondary reference Terrell Machine Co the Terrell Gear Drive Div |
| 3040PL0655660 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 3040-01-384-0820 is a Breather, manufactured by Regal-Beloit Corp Durst Div, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-384-0820 has 2 manufacturer part numbers on file: 4400-101 (Regal-Beloit Corp Durst Div), T044000101 (Regal-Beloit Corp Durst Div).
Key specifications for T044000101: Outside Diameter: 1.110 INCHES MAXIMUM IN; Overall Length: 1.470 INCHES MAXIMUM IN; Body Material: STEEL CORROSION RESISTING; End Item Identification: 4920-01-279-4762. 2 specifications are 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.