The Valve,flow Control, cataloged under National Stock Number 4820-01-434-5360, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Par Marine Services Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-434-5360 |
| Primary Part Number | CLV500B |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Par Marine Services Llc |
| Status | ACTIVE |
| Seat Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| CLV500B PRIMARY | Par Marine Services Llc (USA) |
| CLV5A01BS | Trevose Industrial Products Inc (USA) |
| Reference | Meaning |
|---|---|
| CLV500B | 3/9 Design control — primary reference Pneucon Inc |
| JCLV500B | 5/9 Secondary reference Par Marine Services Llc |
| CLV500B | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-434-5360 is a Valve,flow Control, manufactured by Par Marine Services Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-434-5360 has 2 manufacturer part numbers on file: CLV500B (Par Marine Services Llc), CLV5A01BS (Trevose Industrial Products Inc).
Key specifications for CLV500B: Special Features: NYLON ROLLER LEVER; SPRING RETURN TYPE; Seat Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; End Item Identification: TICONDEROGA CLASS CG (47); Valve Operation Method: MANUAL. 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.