The Limiter,pressure, cataloged under National Stock Number 4820-01-020-5508, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-020-5508 |
| Item Name | Limiter,pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | OVERLOAD PROTECTION,100.00 PSI TO ANY CONNECTION |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATE D BY DWG REF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 671AM29 | 3/9 Design control — primary reference Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| 54494-90046-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-020-5508 is a Limiter,pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-020-5508: General Characteristics Item Description: OVERLOAD PROTECTION,100.00 PSI TO ANY CONNECTION; End Item Identification: AIR DATA COMPUTER,MODEL AN/ASM-442; Reference Number Differentiating Characteristics: AS DIFFERENTIATE D BY DWG REF. 2 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.