The Valve,pneumatic Tank, cataloged under National Stock Number 4820-01-312-9207, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Stauff Corp. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-312-9207 |
| Primary Part Number | SMK-20-1/4NPT-V-D-W3 |
| Item Name | Valve,pneumatic Tank |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Stauff Corp |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Body Style | STRAIGHT THRU |
| First End Connection Type | THREADED EXTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 0.250 INCHES 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 |
|---|---|
| SMK-20-1/4NPT-V-D-W3 PRIMARY | Stauff Corp (USA) |
| Reference | Meaning |
|---|---|
| TCM-20-1/4NPTV | 5/9 Secondary reference Stauff Corp |
| 2HS350 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
NSN 4820-01-312-9207 is a Valve,pneumatic Tank, manufactured by Stauff Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-312-9207 has 1 manufacturer part number on file: SMK-20-1/4NPT-V-D-W3 (Stauff Corp).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-496-0093. Verify interchangeability with system specifications before substitution.
Key specifications for SMK-20-1/4NPT-V-D-W3: First End Thread Direction: RIGHT-HAND; Body Style: STRAIGHT THRU; First End Connection Type: THREADED EXTERNAL PIPE; First End Nominal Pipe Size Accommodated: 0.250 INCHES IN. 4 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.