The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-134-3674, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sloan Valve Company. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-134-3674 |
| Primary Part Number | 330118 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sloan Valve Company |
| Status | ACTIVE |
| Style Designator | FLAT |
| Media for Which Designed | WATER |
| Material | RUBBER |
| 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 |
|---|---|
| A-156-A | Sloan Valve Company (USA) |
| 330118 PRIMARY | Sloan Valve Company (USA) |
| Reference | Meaning |
|---|---|
| A156A | 5/9 Secondary reference U.S. Government activity |
| 090290 | 5/9 Secondary reference U.S. Government activity |
| 70629W | 5/9 Secondary reference Creed Co Div of Plumbmaster Inc |
NSN 4820-01-134-3674 is a Diaphragm,valve,flat, manufactured by Sloan Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-134-3674 has 2 manufacturer part numbers on file: A-156-A (Sloan Valve Company), 330118 (Sloan Valve Company).
4 possible matches (shared part number, not a government interchangeability claim): 5998-01-201-6851, 4820-01-250-4121, 4820-01-250-7109. Verify interchangeability with system specifications before substitution.
Key specifications for 330118: Style Designator: FLAT; Media for Which Designed: WATER; Material: RUBBER. 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.