The Valve,gage Shutoff, cataloged under National Stock Number 4820-00-431-4121, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Clark-Reliance Llc Dba Jerguson Gage & Valve. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-431-4121 |
| Primary Part Number | A17725 |
| Item Name | Valve,gage Shutoff |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Clark-Reliance Llc Dba Jerguson Gage & Valve |
| 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 |
|---|---|
| A17725 PRIMARY | Clark-Reliance Llc Dba Jerguson Gage & Valve (USA) |
| 681 BOTTOM VALVE ASSEMBLY | Clark-Reliance Llc Dba Jerguson Gage & Valve (USA) |
| Reference | Meaning |
|---|---|
| E681 LH | C/1 Advisory reference — outside the item-of-supply concept Northeast Controls Div Northeast Process Controls Company |
NSN 4820-00-431-4121 is a Valve,gage Shutoff, manufactured by Clark-Reliance Llc Dba Jerguson Gage & Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-431-4121 has 2 manufacturer part numbers on file: A17725 (Clark-Reliance Llc Dba Jerguson Gage & Valve), 681 BOTTOM VALVE ASSEMBLY (Clark-Reliance Llc Dba Jerguson Gage & Valve).
1 possible match (shared part number, not a government interchangeability claim): 3510-01-145-8105. Verify interchangeability with system specifications before substitution.
Key specifications for A17725: End Item Identification: LIQUID SIGNAL INDICATOR,24.500 INCH CENTER TO CENTER 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.