The Seat,valve, cataloged under National Stock Number 4820-01-252-6157, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Oic Valve Corp. Government technical data includes 2 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-252-6157 |
| Primary Part Number | BSR2011532XSC25-07 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Oic Valve Corp |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| BSR2011532XSC25-07 PRIMARY | Oic Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| AS1-201-SC | D/9 Drawing number reference only Oic Valve Corp |
| AW-201-SC ITEM 7 | 5/9 Secondary reference Oic Valve Corp |
| BS2011532XSC25- | C/1 Advisory reference — outside the item-of-supply concept Oic Valve Corp |
| AS1-201-SC ITEM 7 | 5/9 Secondary reference Oic Valve Corp |
NSN 4820-01-252-6157 is a Seat,valve, manufactured by Oic Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-252-6157 has 1 manufacturer part number on file: BSR2011532XSC25-07 (Oic Valve Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-252-6158, 4820-01-252-6341. Verify interchangeability with system specifications before substitution.
Key specifications for BSR2011532XSC25-07: Material: STEEL CORROSION RESISTING OVERALL; Seating Surface Shape: FLAT. 2 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.