The Valve,ball, cataloged under National Stock Number 4810-01-066-9452, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-066-9452 |
| Primary Part Number | SS845-2444667ASSYA |
| Item Name | Valve,ball |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 7.500 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | QQ-N-288,COMP A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Bolt Hole Nominal Diameter | 0.688 INCHES ALL ENDS IN |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) NOMINAL POWER DRIVE LBS |
| Valve Size | 4.000 INCHES IN |
| Nominal Outside Diameter | 8.688 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 8 ALL ENDS |
| Face to Face Distance | 14.500 INCHES IN |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Material | RUBBER PACKING |
| Valve Operation Method | HYDRAULIC |
| Nominal Thickness | 1.438 INCHES ALL ENDS IN |
| 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 |
|---|---|
| SS845-2444667ASSYA | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| SS845-2444667 | D/9 Drawing number reference only Naval Sea Systems Command |
| 2640-849X1ASSYA | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-01-066-9452 is a Valve,ball, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-066-9452 has 1 manufacturer part number on file: SS845-2444667ASSYA (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-067-2627. Verify interchangeability with system specifications before substitution.
Key specifications for SS845-2444667ASSYA: Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 7.500 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS. 17 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.