The Valve Assembly,air Flow, cataloged under National Stock Number 4820-01-052-9970, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rockwell Collins, Inc. Dba Rc Displays Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-052-9970 |
| Primary Part Number | 29790-9 |
| Item Name | Valve Assembly,air Flow |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rockwell Collins, Inc. Dba Rc Displays Systems |
| Status | ACTIVE |
| General Characteristics Item Description | PARTS LIST CONTAINS 1 SPRING,4 SCREWS,1 RING,1 SEAL,1 CAP,1 PLUNGER,1 VALVE BODY,ADHESIVE,PRIMER,AND EASYPOXY REPAIR KIT AS REQUIRED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 29790-9 PRIMARY | Rockwell Collins, Inc. Dba Rc Displays Systems (USA) |
| Reference | Meaning |
|---|---|
| 29790-9A | 5/9 Secondary reference Rockwell Collins, Inc. Dba Rc Displays Systems |
NSN 4820-01-052-9970 is a Valve Assembly,air Flow, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-052-9970 has 1 manufacturer part number on file: 29790-9 (Rockwell Collins, Inc. Dba Rc Displays Systems).
Key specifications for 29790-9: General Characteristics Item Description: PARTS LIST CONTAINS 1 SPRING,4 SCREWS,1 RING,1 SEAL,1 CAP,1 PLUNGER,1 VALVE BODY,ADHESIVE,PRIMER,AND EASYPOXY REPAIR KIT AS REQUIRED; End Item Identification: F16. 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.
NSN 4820-01-052-9970 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.