The Valve,stop-Lift-Check, cataloged under National Stock Number 4820-00-781-7820, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crane Co Div Valve Div. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-781-7820 |
| Primary Part Number | 29973 |
| Item Name | Valve,stop-Lift-Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | CANCELLED |
| Bolt Hole Nominal Diameter | 0.750 INCHES FIRST END IN |
| Second Connection Face to Centerline Distance | 4.250 INCHES IN |
| Valve Operation Method | MANUAL |
| Bolt Hole Quantity | 4 FIRST END |
| Valve Size | 1.000 INCHES IN |
| Connection Type | FLANGE FIRST END |
| Flange Face Design | RAISED STRAIGHT FIRST END |
| Features Provided | BONNET PACKING |
| Mounting Position | VERTICAL |
| First Connection Face to Centerline Distance | 4.250 INCHES IN |
| Raised Face Nominal Diameter | 2.000 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 3.500 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.875 INCHES FIRST END IN |
| Raised Face Nominal Height | 0.250 INCHES FIRST END IN |
| Style Designator | ANGLE FLANGED ENDS |
| Nominal Thickness | 0.688 INCHES FIRST END IN |
| Material | COBALT ALLOY FLOW CONTROL DEVICE |
| Material | STEEL COMP 410 STEM |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Renewable Seat Ring Type | THREADED |
| Flow Control Device | DISK |
| Bonnet Attachment Method | BOLTED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-781-7820 is a Valve,stop-Lift-Check, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-781-7820 has 3 cross-referenced part numbers: 29973 (Crane Co Div Valve Div), MILV22094 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3657U (Crane Co Div Valve Div).
There are 6 known substitutes for 4820-00-781-7820: 5340-01-011-3682, 4730-01-130-4356, 4820-01-151-4019 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 29973: Bolt Hole Nominal Diameter: 0.750 INCHES FIRST END IN; Second Connection Face to Centerline Distance: 4.250 INCHES IN; Valve Operation Method: MANUAL; Bolt Hole Quantity: 4 FIRST END. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-781-7820 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.