The Adapter,check Valve, cataloged under National Stock Number 4730-01-437-5307, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Duhadaway Tool & Die Shop Inc. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-437-5307 |
| Primary Part Number | 524436-8 |
| Item Name | Adapter,check Valve |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Duhadaway Tool & Die Shop Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 524436-8 | Duhadaway Tool & Die Shop Inc (USA) |
| 524436-8 | Costa Precision Manufacturing Corp (USA) |
| 524436-8 | Capy Machine Shop Inc. Dba Capy Machine Shop Inc (USA) |
| 524436-8 | Bec Systems Llc Dba Bec Machine Products (USA) |
| Reference | Meaning |
|---|---|
| 524436-8 | 3/2 Design control — primary reference U.S. Government activity |
| 524436-8 | 5/9 Secondary reference Preci-Manufacturing, Incorporated |
| 524436-8 | 5/9 Secondary reference Computa-Base-Machining, Inc. |
| 524436-8 | 5/9 Secondary reference Bay City Shovels, Inc |
NSN 4730-01-437-5307 is a Adapter,check Valve, manufactured by Duhadaway Tool & Die Shop Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-437-5307 has 4 manufacturer part numbers on file: 524436-8 (Duhadaway Tool & Die Shop Inc), 524436-8 (Costa Precision Manufacturing Corp), 524436-8 (Capy Machine Shop Inc. Dba Capy Machine Shop Inc), 524436-8 (Bec Systems Llc Dba Bec Machine Products).
Key specifications for 524436-8: End Item Identification: PREPROVISIONING SUPPORT NAVICP IS POE. 0 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.