The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-150-0861, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Swagelok Co (CAGE 3T9T9) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-150-0861 |
| Primary Part Number | SS-4P4T5 |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| 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 |
|---|---|
| SS-4P4T5 PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| P4T | D/9 Drawing number reference only Nupro Co |
| SS-4P4T5 | 5/9 Secondary reference Nupro Co |
NSN 4820-01-150-0861 is a Valve,bleeder,hydraulic System, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-150-0861 has 1 manufacturer part number on file: SS-4P4T5 (Swagelok Co).
2 possible matches (shared part number, not a government interchangeability claim): 7045-01-627-1833, 7025-01-678-7479. Verify interchangeability with system specifications before substitution.
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.