The Valve,pneumatic Tank, cataloged under National Stock Number 4820-00-856-8514, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dill Air Controls Products Llc Dba Dill Air Controls Products Llc. Government technical data includes 16 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-856-8514 |
| Primary Part Number | SK20420/AA-655 |
| Item Name | Valve,pneumatic Tank |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dill Air Controls Products Llc Dba Dill Air Controls Products Llc |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Thread Class | 3A A |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL |
| Second End Nominal Pipe Size Accommodated | 0.125 INCHES IN |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | PLAIN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.125 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING BODY |
| Second End Connection Type | THREADED EXTERNAL PIPE |
| Commercial Core Length Designator | STANDARD |
| Commercial Spring Tension Rating | NOT RATED |
| 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 |
|---|---|
| SK20420/AA-655 PRIMARY | Dill Air Controls Products Llc Dba Dill Air Controls Products Llc (USA) |
| Reference | Meaning |
|---|---|
| SK2042-0655100BB | 5/9 Secondary reference Eaton Corporation Dba Air Controls Division Div Air Controls Division |
| 013-3131-00 | 5/9 Secondary reference Eaton Corporation Dba Air Controls Division Div Air Controls Division |
NSN 4820-00-856-8514 is a Valve,pneumatic Tank, manufactured by Dill Air Controls Products Llc Dba Dill Air Controls Products Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-856-8514 has 1 manufacturer part number on file: SK20420/AA-655 (Dill Air Controls Products Llc Dba Dill Air Controls Products Llc).
Key specifications for SK20420/AA-655: Flow Control Device: DISK, FLAT; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL; Body Style: STRAIGHT THRU. 16 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.