The Seat,valve, cataloged under National Stock Number 4820-00-034-3265, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aeroparts Machining, Llc Dba Warnkes Machining Co Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-034-3265 |
| Primary Part Number | 2-43307-9 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aeroparts Machining, Llc Dba Warnkes Machining Co Llc |
| Status | ACTIVE |
| FSC Application Data | ACFT CANOPY FLUTTER DAMPENER |
| Thread Length | 0.438 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | PLAIN THREADED |
| Material Document and Classification | MIL-S-6758,COND F 4 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Body Inside Diameter | 0.375 INCHES NOMINAL IN |
| Nominal Thread Size | 0.750 INCHES SINGLE THREADED PORTION IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 16 SINGLE THREADED PORTION |
| Material | STEEL COMP 4130 OVERALL |
| Seat Angle in Deg | 45.000 NOMINAL |
| Thread Series Designator | UNF SINGLE THREADED PORTION |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 2-43307-9 | Aeroparts Machining, Llc Dba Warnkes Machining Co Llc (USA) |
| Reference | Meaning |
|---|---|
| 2-43307-9 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 2-43307-9 | 5/9 Secondary reference Engineered Magnetics Inc Aap Div |
| 2-43307-9 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 4820-00-034-3265 is a Seat,valve, manufactured by Aeroparts Machining, Llc Dba Warnkes Machining Co Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-034-3265 has 1 manufacturer part number on file: 2-43307-9 (Aeroparts Machining, Llc Dba Warnkes Machining Co Llc).
Key specifications for 2-43307-9: Overall Height: 0.438 INCHES NOMINAL IN; FSC Application Data: ACFT CANOPY FLUTTER DAMPENER; Thread Length: 0.438 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: PLAIN THREADED. 12 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.