The Valve,regulating,oxygen System P, cataloged under National Stock Number 4820-01-463-4902, 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 9 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-463-4902 |
| Primary Part Number | B-4JNR-PM-SC-11CP |
| Item Name | Valve,regulating,oxygen System P |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Criticality Code Justification | ZZZY |
| End Connection Quantity | 2 |
| Material | COPPER ALLOY BODY |
| Material | PLASTIC TETRAFLUOROETHYLENE PACKING |
| Material | COPPER ALLOY AND PLASTIC TETRAFLUOROETHYLENE STEM |
| Media for Which Designed | OXYGEN, LIQUID |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| B-4JNR-PM-SC-11CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 17N0019CP | Naval Inventory Control Point Mechanicsburg (USA) |
| B4J-PMCP | Naval Inventory Control Point Mechanicsburg (USA) |
| 1598AS142-1CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| B4J-PM | 5/9 Secondary reference Nupro Co |
| 1598AS142-1 | 7/9 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| B4J-PM | 5/1 Secondary reference Swagelok Co |
| 17N0019 | C/1 Advisory reference — outside the item-of-supply concept Chart Inc Div Distribution and Storage |
| 1598AS142 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| B-4JNR-PM-SC-11 | 3/1 Design control — primary reference Swagelok Co |
NSN 4820-01-463-4902 is a Valve,regulating,oxygen System P, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-463-4902 has 4 manufacturer part numbers on file: B-4JNR-PM-SC-11CP (Naval Inventory Control Point Mechanicsburg), 17N0019CP (Naval Inventory Control Point Mechanicsburg), B4J-PMCP (Naval Inventory Control Point Mechanicsburg), 1598AS142-1CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for B-4JNR-PM-SC-11CP: Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; Criticality Code Justification: ZZZY; End Connection Quantity: 2. 9 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.