The Shell Assembly,burner, cataloged under National Stock Number 4520-01-375-2120, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-375-2120 |
| Item Name | Shell Assembly,burner |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | FABRICATED FROM DWG-P/N 5-13-4416 BURNER SHELL (STAINLESS SHEET 20GA,PERFORATED,11.55ID,10.00IN.H,FLANGE 12.62IN.DIA) 1 EA; DWG-P/N 5-13-4417 SPACER RING (STEEL 11GA 11.55OD) 1 EA; DWG-P/N RING (STEEL 18GA 11.310D) 1 EA;DWG-P/N ADAPTER RING (STEEL 14GA STEPPED 18.50OD,12.00IN.OPENNING,2 HOLES 0.138ID 180.0DEG APART) 1 EA; DWG-P/N 5-13-4420 BURNER BASE STEEL 18GA 11.64ID,1.38IN.DP,1.14IN.OPENNING) 1EA; DWG-P/N 5-13-4421 UP TUBE (STAINLESS TUBING 20GA. 0.75IN.DIA 10.00IN L) 1 EA; P/N 1/2-GG-S PIPE CONNECTOR( PARKER-HANNIFIN) 1 EA; P/N 3800 X8 STREET ELBOW 1/2 X1/2 (DANA-WEATHERHEAD) 1 EA; P/N 1/4NPT X 5.000L PIPE NIPPLE (STAINLESS STEEL ASTM A733) 1 EA; P/N C 3109 X 8 X 4 REDUCER BUSHING (1/2 X 1/4 DANA WEATHERHEAD) 1 EA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 5-13-4415 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4520-01-375-2120 is a Shell Assembly,burner, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-375-2120: General Characteristics Item Description: FABRICATED FROM DWG-P/N 5-13-4416 BURNER SHELL (STAINLESS SHEET 20GA,PERFORATED,11.55ID,10.00IN.H,FLANGE 12.62IN.DIA) 1 EA; DWG-P/N 5-13-4417 SPACER RING (STEEL 11GA 11.55OD) 1 EA; DWG-P/N RING (STEEL 18GA 11.310D) 1 EA;DWG-P/N ADAPTER RING (STEEL 14GA STEPPED 18.50OD,12.00IN.OPENNING,2 HOLES 0.138ID 180.0DEG APART) 1 EA; DWG-P/N 5-13-4420 BURNER BASE STEEL 18GA 11.64ID,1.38IN.DP,1.14IN.OPENNING) 1EA; DWG-P/N 5-13-4421 UP TUBE (STAINLESS TUBING 20GA. 0.75IN.DIA 10.00IN L) 1 EA; P/N 1/2-GG-S PIPE CONNECTOR( PARKER-HANNIFIN) 1 EA; P/N 3800 X8 STREET ELBOW 1/2 X1/2 (DANA-WEATHERHEAD) 1 EA; P/N 1/4NPT X 5.000L PIPE NIPPLE (STAINLESS STEEL ASTM A733) 1 EA; P/N C 3109 X 8 X 4 REDUCER BUSHING (1/2 X 1/4 DANA WEATHERHEAD) 1 EA IN; End Item Identification: 4520-01-329-3451 SPACE HEATER. 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.