The Retainer,gasket,valve, cataloged under National Stock Number 4820-01-236-7235, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-236-7235 |
| Primary Part Number | 8188-012-010 8IN |
| Item Name | Retainer,gasket,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| General Characteristics Item Description | STAINLESS STEEL GRADE F6A,CLASS 2,ASTM-A182 |
| 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 |
|---|---|
| 8880-018 ITEM 11 | Velan Valve Corp. (USA) |
| 8188-012-010 8IN PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| 8188-012-021 8IN | 5/9 Secondary reference Velan Valve Corp. |
| 8188-012-010 | C/1 Advisory reference — outside the item-of-supply concept Velan Valve Corp. |
| 8880-018 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-236-7235 is a Retainer,gasket,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-236-7235 has 2 manufacturer part numbers on file: 8880-018 ITEM 11 (Velan Valve Corp.), 8188-012-010 8IN (Velan Valve Corp.).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-464-2227, 4820-01-464-2255, 4820-01-486-4845. Verify interchangeability with system specifications before substitution.
Key specifications for 8188-012-010 8IN: General Characteristics Item Description: STAINLESS STEEL GRADE F6A,CLASS 2,ASTM-A182. 1 specification is 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.