The Bellows,valve, cataloged under National Stock Number 4820-00-406-6926, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pump Systems Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-406-6926 |
| Primary Part Number | MEPT4335 |
| Item Name | Bellows,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pump Systems Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CRES;DISK SHAPE;1.850 IN. DIA;0.300 IN. THICK;W/CRES PUSH PIN BRAZED TO THE TOP SURFACE;BOTTOM SURFAACED HAS A PLUG TYPE ATTACHMENT W/EXTERNAL THREADS,UNF 0.437-20,RH,2A A |
| 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 |
|---|---|
| MEPT4335 | Pump Systems Llc (USA) |
| MEPT4335 | Accu-Temp, Inc. (USA) |
| Reference | Meaning |
|---|---|
| C6888 | 5/9 Secondary reference Accu-Temp, Inc. |
| C6888 | 3/9 Design control — primary reference Marshall Engineered Products Co Dba Mepco |
| C6888 | 5/9 Secondary reference Pump Systems Llc |
NSN 4820-00-406-6926 is a Bellows,valve, manufactured by Pump Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-406-6926 has 2 manufacturer part numbers on file: MEPT4335 (Pump Systems Llc), MEPT4335 (Accu-Temp, Inc.).
Key specifications for MEPT4335: General Characteristics Item Description: CRES;DISK SHAPE;1.850 IN. DIA;0.300 IN. THICK;W/CRES PUSH PIN BRAZED TO THE TOP SURFACE;BOTTOM SURFAACED HAS A PLUG TYPE ATTACHMENT W/EXTERNAL THREADS,UNF 0.437-20,RH,2A A. 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.