The Valve,expansion, cataloged under National Stock Number 4820-00-470-9908, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Electric Co Alco Controls Div. Government technical data includes 30 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-470-9908 |
| Primary Part Number | TCLE100HW |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Valve Equalizer Location | EXTERNAL |
| Temp Rating | -40.0 FAHRENHEIT AND 50.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| First End Style Designator | SOCKET |
| Valve Pressure Limiting Device Setting | 00.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Bulb Length | 4.781 INCHES MINIMUM AND 4.844 INCHES MAXIMUM IN |
| Bulb Diameter | 0.623 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN |
| Valve Equalizer Connection Diameter | 0.250 INCHES NOMINAL IN |
| Mounting Method | CLAMP BULB |
| Refrigeration Capacity in Btu Per Hour | 12.0 |
| Second End Nominal Pipe Size Accommodated | 0.375 INCHES IN |
| Material Document and Classification | ASTM B124, ALLOY NO. 2 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM B124, ALLOY NO. 2 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 304 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30304 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 410 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 51410 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| End Connection Quantity | 2 |
| Capillary Tube Length | 180.000 INCHES NOMINAL IN |
| Second End Style Designator | SOCKET |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| Bulb Media Type | REFRIGERANT 22 |
| First End Outside Diameter Tube Accommodated | 0.625 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Material | STEEL COMP 304 FLOW CONTROL DEVICE |
| Material | STEEL COMP 410 STEM |
| Material | COPPER ALLOY SEAT |
| Valve Expansion Control Type | PRESSURE |
| Media for Which Designed | REFRIGERANT 22 |
| Valve Equalizer Connection Type | FLARED TUBE |
| 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 |
|---|---|
| TCLE100HW PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
NSN 4820-00-470-9908 is a Valve,expansion, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-470-9908 has 1 manufacturer part number on file: TCLE100HW (Emerson Electric Co Alco Controls Div).
Key specifications for TCLE100HW: Flow Control Device: DIAPHRAGM; Valve Equalizer Location: EXTERNAL; Temp Rating: -40.0 FAHRENHEIT AND 50.0 FAHRENHEIT DEGF; Second End Relationship with First End: NOT IDENTICAL. 30 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.