The Valve,angle, cataloged under National Stock Number 4820-00-027-3552, 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 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-027-3552 |
| Primary Part Number | 2640-602ASSYWL1 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flow Control Device | NEEDLE |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Connection Style | GASKET SEAL(BOSS) SECOND END |
| Criticality Code Justification | ZZZY |
| Style Designator | ANGLE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND SECOND END |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Seat Angle | 12.0 DEGREES SECOND END |
| Bonnet Attachment Method | INTEGRAL |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Thread Class | 2B SECOND END |
| Material | COPPER ALLOY 630 STEM |
| Material | COPPER ALLOY 715 BODY |
| Material | COPPER ALLOY 630 FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 715 SEAT |
| Thread Series Designator | UNF SECOND END |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 2640-602ASSYWL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-2050985ASSYWL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2640-602ASSYW | 5/1 Secondary reference U.S. Government activity |
| 845-2050985ASSYW | 5/1 Secondary reference U.S. Government activity |
| 2640-602ASSYWL1 | 5/1 Secondary reference U.S. Government activity |
| 845-2050985ASSYW | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-00-027-3552 is a Valve,angle, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-027-3552 has 2 manufacturer part numbers on file: 2640-602ASSYWL1 (Naval Inventory Control Point Mechanicsburg), 845-2050985ASSYWL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2640-602ASSYWL1: Flow Control Device: NEEDLE; Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 0.750 INCHES FIRST END IN; Connection Style: GASKET SEAL(BOSS) SECOND END. 21 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 4820-00-027-3552 has DEMIL Code B. 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.