The Nozzle,spray,fluid-Emulsion, cataloged under National Stock Number 4730-01-321-9983, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-321-9983 |
| Primary Part Number | GN521C2 |
| Item Name | Nozzle,spray,fluid-Emulsion |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| GN521C2 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1/2G-32 | 3/2 Design control — primary reference U.S. Government activity |
| GN521C | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 1/2G-32 FULLJET | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-321-9983 is a Nozzle,spray,fluid-Emulsion, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-321-9983 has 1 manufacturer part number on file: GN521C2 (Northrop Grumman Systems Corporation).
Key specifications for GN521C2: Special Features: STEEL;1.875 IN. LG;1.00 IN. W ACROSS FLATS;THD FEMALE INLET CONNECTION;USED WITH 0.500 IN. NOM PIPE SIZE IN. 0 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.