The Seat,valve, cataloged under National Stock Number 4820-01-392-3898, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is E I Dupont De Nemours Co Inc Safety and Environmental Services. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-392-3898 |
| Primary Part Number | SP-1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | E I Dupont De Nemours Co Inc Safety and Environmental Services |
| Status | ACTIVE |
| Seating Surface Shape | ANGULAR |
| Style Designator | PLAIN |
| Seat Angle in Deg | 61.000 NOMINAL |
| Body Inside Diameter | 1.000 INCHES NOMINAL IN |
| Body Outside Diameter | 3.015 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SP-1 PRIMARY | E I Dupont De Nemours Co Inc Safety and Environmental Services (USA) |
NSN 4820-01-392-3898 is a Seat,valve, manufactured by E I Dupont De Nemours Co Inc Safety and Environmental Services, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-392-3898 has 1 cross-referenced part number: SP-1 (E I Dupont De Nemours Co Inc Safety and Environmental Services).
There are 12 known substitutes for 4820-01-392-3898: 4810-00-139-4361, 4210-00-391-5678, 3120-00-516-0278 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for SP-1: Seating Surface Shape: ANGULAR; Style Designator: PLAIN; Seat Angle in Deg: 61.000 NOMINAL; Overall Height: 0.290 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.