The Guide,diaphragm,valve, cataloged under National Stock Number 4820-01-425-6705, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nakakita Seisakusho Co. Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-425-6705 |
| Primary Part Number | KC004553 PC-19 |
| Item Name | Guide,diaphragm,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Nakakita Seisakusho Co. Ltd |
| Status | ACTIVE |
| General Characteristics Item Description | SPRING SEAT ONE END; ROUNDED ON OTHER END FOR DIAPHRAGM |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| KC004553 PC-19 PRIMARY | Nakakita Seisakusho Co. Ltd (JPN) |
| Reference | Meaning |
|---|---|
| KC004553 | D/9 Drawing number reference only Nakakita Seisakusho Co. Ltd |
| KC004553 PC-19 | 3/9 Design control — primary reference Nakakita Seisakusho Co. Ltd |
NSN 4820-01-425-6705 is a Guide,diaphragm,valve, manufactured by Nakakita Seisakusho Co. Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-425-6705 has 1 manufacturer part number on file: KC004553 PC-19 (Nakakita Seisakusho Co. Ltd).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-425-6875. Verify interchangeability with system specifications before substitution.
Key specifications for KC004553 PC-19: General Characteristics Item Description: SPRING SEAT ONE END; ROUNDED ON OTHER END FOR DIAPHRAGM; Special Features: USED ON NAKAKITA SEISAKUSHO CO TYPE NS 770C FILTER/REGULATOR; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: STEEL CORROSION RESISTING. 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.