The Valve,ball, cataloged under National Stock Number 4820-01-266-6798, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-266-6798 |
| Primary Part Number | V-8364 ASSY AL1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 4.000 INCHES ALL ENDS IN |
| Connection Style | SOCKET ALL ENDS |
| Criticality Code Justification | ZZZY |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | MIL-C-20159,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-N-288,CL A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTED |
| Material | COPPER ALLOY 964 BODY |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Valve Operation Method | AIR |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| V-8364 ASSY AL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| V-8364 ASSYA M0D | C/1 Advisory reference — outside the item-of-supply concept Tyco Fire Products Lp |
| V-8364 ASSY A | 3/1 Design control — primary reference Tyco Fire Products Lp |
| V-8364 ASSYA M0DL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| V-8364 ASSYA M0D | 5/9 Secondary reference Rockwood Systems Corp |
NSN 4820-01-266-6798 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-266-6798 has 1 manufacturer part number on file: V-8364 ASSY AL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for V-8364 ASSY AL1: Nominal Pipe Size Accommodated: 4.000 INCHES ALL ENDS IN; Connection Style: SOCKET ALL ENDS; Criticality Code Justification: ZZZY; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS. 13 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 4820-01-266-6798 has DEMIL Code B. 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.