The Stem,fluid Valve, cataloged under National Stock Number 4820-01-278-4094, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Natural Gas Solutions North America Llc Div Industrial Products Group. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-278-4094 |
| Primary Part Number | TA-3983 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Natural Gas Solutions North America Llc Div Industrial Products Group |
| Status | ACTIVE |
| Material | STEEL COMP 316 |
| 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 |
|---|---|
| TC430-440 PIECE 7 | Natural Gas Solutions North America Llc Div Industrial Products Group (USA) |
| TA-3983 PRIMARY | Natural Gas Solutions North America Llc Div Industrial Products Group (USA) |
| Reference | Meaning |
|---|---|
| TA-3983 | 3/9 Design control — primary reference Texsteam Inc Dba Txt or Rcs or Texsteam |
| TC430-440 | D/9 Drawing number reference only Texsteam Inc Dba Txt or Rcs or Texsteam |
| TC430-440 PIECE 7 | 5/9 Secondary reference Texsteam Inc Dba Txt or Rcs or Texsteam |
NSN 4820-01-278-4094 is a Stem,fluid Valve, manufactured by Natural Gas Solutions North America Llc Div Industrial Products Group, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-278-4094 has 2 manufacturer part numbers on file: TC430-440 PIECE 7 (Natural Gas Solutions North America Llc Div Industrial Products Group), TA-3983 (Natural Gas Solutions North America Llc Div Industrial Products Group).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-278-4117, 4820-01-278-5429, 4820-01-278-5701. Verify interchangeability with system specifications before substitution.
Key specifications for TA-3983: Material: STEEL COMP 316. 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.