The Valve,butterfly, cataloged under National Stock Number 4820-01-548-0924, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-548-0924 |
| Primary Part Number | 8217472 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM A395 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Valve Size | 5.000 INCHES IN |
| Material | IRON BODY |
| 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 |
|---|---|
| 8217472 | Lockheed Martin Corporation Div Rms (USA) |
| AVX-31526-2 | Farrell Equipment & Controls, Inc. (USA) |
| 8217472 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4820-01-548-0924 is a Valve,butterfly, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-548-0924 has 3 manufacturer part numbers on file: 8217472 (Lockheed Martin Corporation Div Rms), AVX-31526-2 (Farrell Equipment & Controls, Inc.), 8217472 (Naval Sea Systems Command).
Key specifications for 8217472: Style Designator: STRAIGHT THRU; Material Document and Classification: ASTM A395 ASSN STD SINGLE MATERIAL RESPONSE BODY; Valve Size: 5.000 INCHES IN; Special Features: VALVE FOR SEAWATER SERVICE; TO BE INSTALLED IN SEAWATER PIPING TO SHIPBOARD HEAT EXCHANGER; MANUAL ACTUATOR. 5 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.