The Retainer,seat,valve, cataloged under National Stock Number 4820-01-666-2484, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-666-2484 |
| Primary Part Number | BHL-921-080-H7W-000 |
| Item Name | Retainer,seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp |
| Status | ACTIVE |
| 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 |
|---|---|
| BHL-921-080-H7W-000 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
| Reference | Meaning |
|---|---|
| 101-H7L-08 | D/9 Drawing number reference only Emerson Automation Solutions Final Control Us Lp |
| 101-H7L-08 ITEM NO. 19 | C/1 Advisory reference — outside the item-of-supply concept Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-666-2484 is a Retainer,seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-666-2484 has 1 manufacturer part number on file: BHL-921-080-H7W-000 (Emerson Automation Solutions Final Control Us Lp).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-666-2492, 5330-01-666-2533, 4820-01-666-2607. Verify interchangeability with system specifications before substitution.
Key specifications for BHL-921-080-H7W-000: Special Features: MATERIAL GRAPHITE; Part Name Assigned by Controlling Agency: SEAT RETAINER RING GASKET. 0 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.