The Valve,ball, cataloged under National Stock Number 4820-01-435-4695, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is B N L Industries Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-435-4695 |
| Primary Part Number | A811MOD |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | B N L Industries Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material | BRONZE OVERALL |
| 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 |
|---|---|
| A811MOD PRIMARY | B N L Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 803-5001003-F811MOD | 5/1 Secondary reference Naval Sea Systems Command |
| 5001003 | D/9 Drawing number reference only Naval Sea Systems Command |
| 803-5001003-F811-MOD | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 4820-01-435-4695 is a Valve,ball, manufactured by B N L Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-435-4695 has 1 manufacturer part number on file: A811MOD (B N L Industries Inc).
Key specifications for A811MOD: Furnished Items and Quantity: 1 HANDLE; Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Connection Style: SOCKET WITH BRAZING RING ALL ENDS; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS. 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.