The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-359-6361, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Haldex Brake Products Corporation. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-359-6361 |
| Primary Part Number | N-20455 |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Haldex Brake Products Corporation |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.125 INCHES FIRST END IN |
| Nominal Length | 1.000 INCHES ALL ENDS IN |
| Minimum Operating Temp | -50.0 FAHRENHEIT DEGF |
| Nominal Thread Size | 0.125 INCHES FIRST END IN |
| Maximum Operating Temp | 120.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 0.530 INCHES ALL ENDS IN |
| Thread Quantity Per Inch | 27 FIRST END |
| Thread Series Designator | 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 |
|---|---|
| N-20455 PRIMARY | Haldex Brake Products Corporation (USA) |
| 1875010 | Oshkosh Defense Llc (USA) |
| N-20455 | Amz Alabama Inc. (USA) |
| N-20455 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| Reference | Meaning |
|---|---|
| 1875010 | 5/9 Secondary reference Oshkosh Corp |
| 12414244 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 4820-01-359-6361 is a Valve,bleeder,hydraulic System, manufactured by Haldex Brake Products Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-359-6361 has 4 manufacturer part numbers on file: N-20455 (Haldex Brake Products Corporation), 1875010 (Oshkosh Defense Llc), N-20455 (Amz Alabama Inc.), N-20455 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc).
1 possible match (shared part number, not a government interchangeability claim): 5855-01-569-8023. Verify interchangeability with system specifications before substitution.
Key specifications for N-20455: Nominal Pipe Size Accommodated: 0.125 INCHES FIRST END IN; Nominal Length: 1.000 INCHES ALL ENDS IN; Minimum Operating Temp: -50.0 FAHRENHEIT DEGF; Nominal Thread Size: 0.125 INCHES FIRST END IN. 8 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.