The Seat,valve, cataloged under National Stock Number 4820-00-787-0950, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mid-America Aerotech, Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-787-0950 |
| Primary Part Number | 17919 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Mid-America Aerotech, Llc |
| Status | ACTIVE |
| Surface Treatment | PASSIVATE OVERALL |
| Body Outside Diameter | 0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN |
| Flange Diameter | 0.372 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Seal Accommodation Type | GROOVED |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 25.0 ROCKWELL C MAXIMUM OVERALL |
| Seating Surface Shape | FLAT |
| Body Inside Diameter | 0.070 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-787-0950 is a Seat,valve, manufactured by Mid-America Aerotech, Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-787-0950 has 4 cross-referenced part numbers: 17919 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City), 17919 (E-Systems Inc Montek Div Fluid Controls Opns), 17919 (Mid-America Aerotech, Llc), 17919 (Moog Inc).
There are 3 known substitutes for 4820-00-787-0950: 5950-00-086-0768, 1680-00-448-4725, 5962-01-123-6652. Verify interchangeability with system specifications before substitution.
Key specifications for 17919: Surface Treatment: PASSIVATE OVERALL; Body Outside Diameter: 0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN; Flange Diameter: 0.372 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN; Seal Accommodation Type: GROOVED. 10 total characteristics are documented in the Federal Logistics Information System.