The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-343-7284, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-343-7284 |
| Primary Part Number | 158 P/L5052B 470T1700PSIVM |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flow Control Device | ANY ACCEPTABLE |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| First End Style Designator | PLAIN |
| First Connection Face to Centerline Distance | 1.940 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Second Connection Face to Centerline Distance | 2.060 INCHES NOMINAL IN |
| First End Connection Type | PLAIN FACE FLANGE |
| Material | COPPER ALLOY BODY |
| Material | STEEL SEAT |
| Media for Which Designed | AIR |
| Reference Number Differentiating Characteristics | MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION |
| Adjustable Pressure Range | 470.0 TO 1700.0 CAMERA MOUNT |
| 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 |
|---|---|
| 158 P/L5052B 470T1700PSIVM | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 158 P/L5052B 47 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 158P/L5797 367T1488PSI | 5/2 Secondary reference U.S. Government activity |
| 158 P/L5052B 470T1700PSI | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-01-343-7284 is a Valve,relief,pressure and Temper, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-343-7284 has 1 manufacturer part number on file: 158 P/L5052B 470T1700PSIVM (Naval Inventory Control Point Mechanicsburg).
Key specifications for 158 P/L5052B 470T1700PSIVM: Flow Control Device: ANY ACCEPTABLE; Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS; First End Style Designator: PLAIN; First Connection Face to Centerline Distance: 1.940 INCHES NOMINAL 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.