The Valve,gate, cataloged under National Stock Number 4820-01-435-5899, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-435-5899 |
| Primary Part Number | F08-1054B-02TSG DWG 23399 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICAL |
| Flange Face Design | RAISED |
| Connection Type | FLANGE, ROUND W/HOLES |
| Material Document and Classification | ASTM A276 OR A479 OR A582 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | MIL-V-18110 MIL SPEC SINGLE MATERIAL RESPONSE AND ASTM-A105 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Valve Size | 2.000 INCHES IN |
| Bonnet Attachment Method | THREADED |
| Face to Face Distance | 8.500 INCHES IN |
| Pressure Class | ERR-060 |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING DISK |
| Material | STEEL COMP 316 OR STEEL COMP 416 SEAT |
| Material | STEEL COMP 410 OR STEEL COMP 416 STEM |
| 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 |
|---|---|
| F08-1054B-02TSG DWG 23399 PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| F08-1054B-02TS | 5/9 Secondary reference Velan Valve Corp. |
| H604AD001 | D/9 Drawing number reference only U.S. Government activity |
| H604AD001 ITEM 72 | 5/2 Secondary reference U.S. Government activity |
| 23399 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-435-5899 is a Valve,gate, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-435-5899 has 1 manufacturer part number on file: F08-1054B-02TSG DWG 23399 (Velan Valve Corp.).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-437-3617, 4820-01-437-3619, 4820-01-437-3622. Verify interchangeability with system specifications before substitution.
Key specifications for F08-1054B-02TSG DWG 23399: Furnished Items and Quantity: 1 HANDWHEEL; Inlet Relationship with Outlet: IDENTICAL; Flange Face Design: RAISED; Connection Type: FLANGE, ROUND W/HOLES. 15 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.