The Seat,valve, cataloged under National Stock Number 4820-01-252-6162, 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. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-252-6162 |
| Primary Part Number | E-243 PC8 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Clark-Reliance Llc Dba Jerguson Gage & Valve |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.125 INCHES NOMINAL IN |
| Flange Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | THREADED FLANGED |
| Body Inside Diameter | 0.750 INCHES NOMINAL IN |
| Under Flange Height | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| E-243 PC8 PRIMARY | Clark-Reliance Llc Dba Jerguson Gage & Valve (USA) |
| Reference | Meaning |
|---|---|
| E-243 | D/9 Drawing number reference only Clark-Reliance Llc Dba Jerguson Gage & Valve |
NSN 4820-01-252-6162 is a Seat,valve, manufactured by Clark-Reliance Llc Dba Jerguson Gage & Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-252-6162 has 1 manufacturer part number on file: E-243 PC8 (Clark-Reliance Llc Dba Jerguson Gage & Valve).
Key specifications for E-243 PC8: Flange Seat to Disk End Height: 0.125 INCHES NOMINAL IN; Flange Diameter: 1.000 INCHES NOMINAL IN; Style Designator: THREADED FLANGED; Body Inside Diameter: 0.750 INCHES NOMINAL IN. 7 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.