The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-425-5288, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-425-5288 |
| Primary Part Number | U205664904 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | PLAIN |
| Temp Rating | 170.0 FAHRENHEIT MINIMUM AND 220.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | QQ-A-225/5, ALLOY 2017 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | PLASTIC POLYAMIDE NYLON SEAT |
| Material | ALUMINUM ALLOY 2017 OR ALUMINUM ALLOY 2024 BODY |
| Thread Size and Series/type Designator | 1/4-18 NPT 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 |
|---|---|
| 1/4 THD BP-2 TP | Bermingham Controls, Inc., a California Corporation Dba Bermingham Controls Inc (USA) |
| U205664904 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| U205664904-1/4 THD BP2 TP | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
| 1/4 THD BP-2 TP | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 4820-01-425-5288 is a Valve,regulating,temperature, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-425-5288 has 2 manufacturer part numbers on file: 1/4 THD BP-2 TP (Bermingham Controls, Inc., a California Corporation Dba Bermingham Controls Inc), U205664904 (Leslie Controls, Inc. Dba Leslie Controls Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-425-7454, 4820-01-435-5019. Verify interchangeability with system specifications before substitution.
Key specifications for U205664904: First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; First End Style Designator: PLAIN. 11 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.