The Stem,fluid Valve, cataloged under National Stock Number 4810-01-458-0416, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4810-01-458-0416 |
| Primary Part Number | 6983491-012-45 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Largest Outside Diameter | 0.563 INCHES NOMINAL IN |
| Stem Actuating End Type | FLATTED |
| Material Document and Classification | ASTM B564,B574 ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 0.500 INCHES IN |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| 6983491-012-45 PRIMARY | Naval Sea Systems Command (USA) |
| 803-6983491 PC 45 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6983491 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6983491-45 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 4810-01-458-0416 is a Stem,fluid Valve, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-458-0416 has 2 manufacturer part numbers on file: 6983491-012-45 (Naval Sea Systems Command), 803-6983491 PC 45 (Naval Sea Systems Command).
Key specifications for 6983491-012-45: Valve Type for Which Designed: BALL; Largest Outside Diameter: 0.563 INCHES NOMINAL IN; Stem Actuating End Type: FLATTED; Material Document and Classification: ASTM B564,B574 ASSN STD SINGLE MATERIAL RESPONSE. 6 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.