The Valve,globe, cataloged under National Stock Number 4820-00-925-2104, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 13 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-925-2104 |
| Primary Part Number | 845-2445066 ASSY IRBL1 |
| Item Name | Valve,globe |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 4.000 INCHES FIRST END IN |
| Connection Style | BEVELED (PIPE) FIRST END |
| Criticality Code Justification | ZZZY |
| Connection Type | BUTT WELD PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | INSIDE SCREW |
| Bonnet Attachment Method | BOLTED |
| Material | COPPER ALLOY 964 BODY |
| Material | NICKEL ALLOY R-405 STEM |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 845-2445066 ASSY IRBL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2621-920-12ASSYIRB-4IN | 5/9 Secondary reference U.S. Government activity |
| 845-2445066ASSYIRB-4INL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 2621-920-12ASSYIRB-4INL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| X4974L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 845-2445066 ASSY IRB | 5/1 Secondary reference U.S. Government activity |
| X4974 | 5/1 Secondary reference Derbyshire Machine & Tool Co |
| 2621-920-12ASSYIRB-4IN | 3/1 Design control — primary reference U.S. Government activity |
| 845-2445066ASSYIRB-4IN | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-00-925-2104 is a Valve,globe, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-925-2104 has 1 manufacturer part number on file: 845-2445066 ASSY IRBL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 845-2445066 ASSY IRBL1: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 4.000 INCHES FIRST END IN; Connection Style: BEVELED (PIPE) FIRST END; Criticality Code Justification: ZZZY. 13 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.
NSN 4820-00-925-2104 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.