The Valve,ball, cataloged under National Stock Number 4810-01-105-2087, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4810-01-105-2087 |
| Primary Part Number | 845-4558781 ASSY A |
| Item Name | Valve,ball |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 2.500 INCHES ALL ENDS IN |
| Connection Style | BEVELED (PIPE) ALL ENDS |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Style Designator | CROSS |
| Operating Pressure | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | COPPER ALLOY BODY |
| Material | PLASTIC ACETAL SEAT |
| Material | TITANIUM FLOW CONTROL DEVICE |
| Valve Operation Method | HYDRAULIC |
| 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 |
|---|---|
| 845-4558781 ASSY A | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 4558781-000 AEN1 | 3/2 Design control — primary reference U.S. Government activity |
| 2642-824-32 ASSY A | 3/2 Design control — primary reference U.S. Government activity |
| 845-4558781 ASSY A | 3/2 Design control — primary reference U.S. Government activity |
| 845-4558781 | D/9 Drawing number reference only U.S. Government activity |
NSN 4810-01-105-2087 is a Valve,ball, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-105-2087 has 1 manufacturer part number on file: 845-4558781 ASSY A (Derbyshire Machine & Tool Co).
Key specifications for 845-4558781 ASSY A: Nominal Pipe Size Accommodated: 2.500 INCHES ALL ENDS IN; Connection Style: BEVELED (PIPE) ALL ENDS; Connection Type: BUTT WELD PIPE ALL ENDS; Style Designator: CROSS. 9 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.