The Seat,valve, cataloged under National Stock Number 4820-01-469-7249, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-469-7249 |
| Primary Part Number | 1767-D PC17 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lawler Manufacturing Company, Inc. |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.187 INCHES NOMINAL IN |
| Flange Diameter | 1.250 INCHES NOMINAL IN |
| Thread Length | 0.093 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | THREADED FLANGED |
| Body Inside Diameter | 0.875 INCHES NOMINAL IN |
| Nominal Thread Size | 1.250 INCHES SINGLE THREADED PORTION IN |
| Seat Radius | 0.750 INCHES NOMINAL IN |
| Under Flange Height | 0.031 INCHES NOMINAL IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Material | COPPER ALLOY 464 SEAT |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE THREADED PORTION |
| Seating Surface Shape | RADIAL |
| 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 |
|---|---|
| 3965 | Lawler Manufacturing Company, Inc. (USA) |
| 1767-D PC17 PRIMARY | Lawler Manufacturing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1767-D-17 | D/9 Drawing number reference only Lawler Manufacturing Company, Inc. |
NSN 4820-01-469-7249 is a Seat,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-469-7249 has 2 manufacturer part numbers on file: 3965 (Lawler Manufacturing Company, Inc.), 1767-D PC17 (Lawler Manufacturing Company, Inc.).
Key specifications for 1767-D PC17: Flange Seat to Disk End Height: 0.187 INCHES NOMINAL IN; Flange Diameter: 1.250 INCHES NOMINAL IN; Thread Length: 0.093 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED. 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.