The Yoke,valve, cataloged under National Stock Number 4820-01-221-3617, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-221-3617 |
| Item Name | Yoke,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL IS CAST STEEL; THREADS: 1.250-12UNF-3B UPPER END,1.438-16UN-3B LOWER END; ITEM IS FOR A GLOBE VALVE WITH WELD ENDS |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 201793 PIECE 13 ASSY 93 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 201793 PIECE 13 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-221-3617 is a Yoke,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-221-3617: General Characteristics Item Description: MATERIAL IS CAST STEEL; THREADS: 1.250-12UNF-3B UPPER END,1.438-16UN-3B LOWER END; ITEM IS FOR A GLOBE VALVE WITH WELD ENDS; Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 3 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 4820-01-221-3617 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.