The Valve,throttle, cataloged under National Stock Number 4470-00-143-9159, is classified within Federal Supply Class 4470 (Nuclear Reactors) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4470-00-143-9159 |
| Primary Part Number | 820-2179382-9 |
| Item Name | Valve,throttle |
| FSC / FSG | 4470 / 44 — Nuclear Reactors |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | 1/2 IN. CAPPED CLEANED IN ACCORDANCE WITH MIL-STD-767A A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 820-2179382-9 | Naval Sea Systems Command (USA) |
| 820-2179382-9 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 820-2179382-9 | 3/1 Design control — primary reference Crane Co Div Valve Div |
| 820-2179382GP9 | 5/2 Secondary reference U.S. Government activity |
NSN 4470-00-143-9159 is a Valve,throttle, manufactured by Naval Sea Systems Command, classified under FSC 4470, Nuclear Reactors. Status: active.
NSN 4470-00-143-9159 has 2 manufacturer part numbers on file: 820-2179382-9 (Naval Sea Systems Command), 820-2179382-9 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 820-2179382-9: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: 1/2 IN. CAPPED CLEANED IN ACCORDANCE WITH MIL-STD-767A A. 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.
NSN 4470-00-143-9159 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.