The Diffuser,air,ejector, cataloged under National Stock Number 4320-01-210-0381, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Graham Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-210-0381 |
| Primary Part Number | D-7473-7 PIECE 1B |
| Item Name | Diffuser,air,ejector |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Graham Corp |
| Status | ACTIVE |
| General Characteristics Item Description | CAST BRZ,MIL-B-16541; 13.875 IN. O/A LG; 5.000 IN. H; 4 HOLES 0.562 IN. DIA 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 |
|---|---|
| D-7473-7 PIECE 1B PRIMARY | Graham Corp (USA) |
| Reference | Meaning |
|---|---|
| D-7473 | D/9 Drawing number reference only Graham Mfg Co Inc for Procurement Use CAGE Code 1lcx3 |
| D7473-7-1B | C/1 Advisory reference — outside the item-of-supply concept Graham Mfg Co Inc for Procurement Use CAGE Code 1lcx3 |
| D-7473-7 PIECE 1B | 5/9 Secondary reference Graham Mfg Co Inc for Procurement Use CAGE Code 1lcx3 |
NSN 4320-01-210-0381 is a Diffuser,air,ejector, manufactured by Graham Corp, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-210-0381 has 1 manufacturer part number on file: D-7473-7 PIECE 1B (Graham Corp).
Key specifications for D-7473-7 PIECE 1B: General Characteristics Item Description: CAST BRZ,MIL-B-16541; 13.875 IN. O/A LG; 5.000 IN. H; 4 HOLES 0.562 IN. DIA IN. 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.