The Stem,fluid Valve, cataloged under National Stock Number 4810-01-538-6545, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-538-6545 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| Valve Type for Which Designed | Y |
| Largest Outside Diameter | 1.688 INCHES NOMINAL IN |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Model Number for Which Designed | 250 LB. BRONZE Y PATTERN GLOBE W/MOTOR OPERATOR LBS |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 4.000 INCHES IN |
| Material | COPPER ALLOY 922 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 803-1385623-04XX-3 (MOD) | 5/1 Secondary reference U.S. Government activity |
| NN-46YGTA-D PART 3 4" | 3/9 Design control — primary reference Pima Valve, Llc |
| NN-46YGTA-D PART 3 4" | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
NSN 4810-01-538-6545 is a Stem,fluid Valve, classified under FSC 4810, Valves, Powered. Status: active.
Key specifications for 4810-01-538-6545: Valve Type for Which Designed: Y; Largest Outside Diameter: 1.688 INCHES NOMINAL IN; Stem Actuating End Type: THREADED EXTERNALLY; Valve Model Number for Which Designed: 250 LB. BRONZE Y PATTERN GLOBE W/MOTOR OPERATOR LBS. 7 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.