The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-00-480-5622, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ambac International Corporation Div Ambac International. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-480-5622 |
| Primary Part Number | KT8532 |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ambac International Corporation Div Ambac International |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Connection Type | THREADED INTERNAL TUBE THIRD END |
| Nominal Thread Size | 0.438 INCHES THIRD END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Thread Quantity Per Inch | 24 SECOND END |
| Thread Quantity Per Inch | 24 THIRD END |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | UNS THIRD END |
| Thread Series Designator | UNS SECOND 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 |
|---|---|
| KT8532 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
| Reference | Meaning |
|---|---|
| 147-0183 | 5/9 Secondary reference Cummins Power Generation Inc. |
| VA9031A | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
NSN 4820-00-480-5622 is a Valve,bleeder,hydraulic System, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-480-5622 has 1 manufacturer part number on file: KT8532 (Ambac International Corporation Div Ambac International).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-048-9272. Verify interchangeability with system specifications before substitution.
Key specifications for KT8532: Connection Type: THREADED INTERNAL TUBE SECOND END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Connection Type: THREADED INTERNAL TUBE THIRD END; Nominal Thread Size: 0.438 INCHES THIRD END IN. 12 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.