The Seat,valve, cataloged under National Stock Number 4820-01-478-8993, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-478-8993 |
| Primary Part Number | ST-1.5-792-C-0 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Core Industries Inc. Dba Mueller Steam Specialty |
| Status | ACTIVE |
| Seal Accommodation Type | RECESSED |
| Material | PLASTIC FLUORINATED ETHYLENE PROPYLENE OVERALL |
| 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 |
|---|---|
| ST-1.5-792-C-0 PRIMARY | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
| Reference | Meaning |
|---|---|
| BN-1.5-792F-BH ITEM 6 | D/9 Drawing number reference only Core Industries Inc. Dba Mueller Steam Specialty |
| ST.5-792-C-0 | C/1 Advisory reference — outside the item-of-supply concept Core Industries Inc. Dba Mueller Steam Specialty |
NSN 4820-01-478-8993 is a Seat,valve, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-478-8993 has 1 manufacturer part number on file: ST-1.5-792-C-0 (Core Industries Inc. Dba Mueller Steam Specialty).
Key specifications for ST-1.5-792-C-0: Seal Accommodation Type: RECESSED; Special Features: MOLDED,RECESSED,POLYTETRAFLUOROETHYLENE SEAT,4 EACH REQUIRED; End Item Identification: 1 1/2 INCH NUMBER 792F-BH BALLPLEX STRAINER;NAVAL APPLICATIONS IN; Material: PLASTIC FLUORINATED ETHYLENE PROPYLENE OVERALL. 3 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.