The Seat,valve, cataloged under National Stock Number 4820-00-030-3447, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hale Products, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-030-3447 |
| Primary Part Number | 276-0011-00 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hale Products, Inc. |
| Status | ACTIVE |
| Body Outside Diameter | 2.756 INCHES NOMINAL IN |
| Hardness Rating | 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Style Designator | PLAIN |
| Body Inside Diameter | 2.166 INCHES MINIMUM AND 2.174 INCHES MAXIMUM IN |
| Material | STEEL BODY |
| Material | RUBBER SYNTHETIC FACE |
| 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 |
|---|---|
| 276-0011-00 PRIMARY | Hale Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BLG276D | 5/9 Secondary reference Hale Products, Inc. |
| H1BLG276D | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-030-3447 is a Seat,valve, manufactured by Hale Products, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-030-3447 has 1 manufacturer part number on file: 276-0011-00 (Hale Products, Inc.).
Key specifications for 276-0011-00: Overall Height: 0.293 INCHES NOMINAL IN; Body Outside Diameter: 2.756 INCHES NOMINAL IN; Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM OVERALL; Style Designator: PLAIN. 7 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.