The Seat,valve, cataloged under National Stock Number 4820-00-673-1271, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Moog Military Aircraft Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-673-1271 |
| Primary Part Number | 1012480 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Moog Military Aircraft Llc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.265 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN |
| Flange Diameter | 0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.378 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN |
| Under Flange Height | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Material | STEEL 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 |
|---|---|
| 1012480 PRIMARY | Moog Military Aircraft Llc (USA) |
| Reference | Meaning |
|---|---|
| 1012480 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 4820-00-673-1271 is a Seat,valve, manufactured by Moog Military Aircraft Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-673-1271 has 1 manufacturer part number on file: 1012480 (Moog Military Aircraft Llc).
Key specifications for 1012480: Flange Seat to Disk End Height: 0.265 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN; Flange Diameter: 0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL; Style Designator: PLAIN FLANGED. 8 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.