The Seat,valve, cataloged under National Stock Number 4810-01-078-4562, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-078-4562 |
| Primary Part Number | 5019A |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.156 INCHES NOMINAL IN |
| Flange Diameter | 0.875 INCHES NOMINAL IN |
| Thread Length | 0.281 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Criticality Code Justification | CQKM |
| Style Designator | THREADED FLANGED |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.120 INCHES NOMINAL IN |
| Nominal Thread Size | 0.750 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 0.469 INCHES NOMINAL IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 28 SINGLE THREADED PORTION |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 5019A PRIMARY | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
| Reference | Meaning |
|---|---|
| 5019A | 5/9 Secondary reference Donallco Inc |
| 5019A | C/1 Advisory reference — outside the item-of-supply concept Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
NSN 4810-01-078-4562 is a Seat,valve, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-078-4562 has 1 manufacturer part number on file: 5019A (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-274-7136, 4910-01-532-8282. Verify interchangeability with system specifications before substitution.
Key specifications for 5019A: Flange Seat to Disk End Height: 0.156 INCHES NOMINAL IN; Flange Diameter: 0.875 INCHES NOMINAL IN; Thread Length: 0.281 INCHES NOMINAL SINGLE THREADED PORTION IN; Criticality Code Justification: CQKM. 14 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.
NSN 4810-01-078-4562 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.