The Valve,regulating,temperature, cataloged under National Stock Number 4820-00-806-9873, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-806-9873 |
| Primary Part Number | 8633843 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Flow Control Device | DISK, TOP GUIDED |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Offset Distance | 0.375 INCHES NOMINAL IN |
| Body Style | STRAIGHT THRU W/OFFSET |
| First End Seat Angle in Deg | 45.0 |
| First End Thread Class | 3A A |
| First End Style Designator | FLARED |
| Bulb Length | 4.500 INCHES NOMINAL IN |
| Bulb Diameter | 0.500 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Capillary Tube Length | 42.000 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Temp Adjustability | ADJUSTABLE |
| Thermostatic Element | LIQUID IMMERSION TYPE |
| First End Outside Diameter Tube Accommodated | 0.188 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | COPPER ALLOY BULB |
| Thread Size and Series/type Designator | 3/8-24 UNF FIRST END |
| 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 |
|---|---|
| 8633843 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 521-60383 | 5/9 Secondary reference U.S. Government activity |
| 521-093 | 5/9 Secondary reference U.S. Government activity |
| 521-60383 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-806-9873 is a Valve,regulating,temperature, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-806-9873 has 1 manufacturer part number on file: 8633843 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
1 possible match (shared part number, not a government interchangeability claim): 6105-01-363-4810. Verify interchangeability with system specifications before substitution.
Key specifications for 8633843: Flow Control Device: DISK, TOP GUIDED; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Offset Distance: 0.375 INCHES NOMINAL IN. 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.
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.