The Valve,angle, cataloged under National Stock Number 4820-01-436-8397, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-436-8397 |
| Primary Part Number | 6768203 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 RELIEF PLUG |
| Surface Treatment Document and Classification | QQ-C-320,CL 2,TY 1 FED SPEC 1ST TREATMENT RESPONSE AND QQ-N-290,CL 2,TY VII FED SPEC 2ND TREATMENT RESPONSE |
| Supplementary Features | SPECIAL CLEANING FOR OXYGEN SERVICE PER MIL-STD-1330 |
| Criticality Code Justification | SUPP |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Style Designator | ANGLE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Surface Treatment | CHROMIUM AND NICKEL |
| Media for Which Designed | OXYGEN, LIQUID SINGLE RESPONSE |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 592-6768203 | Naval Sea Systems Command (USA) |
| 6768203 PRIMARY | Naval Sea Systems Command (USA) |
| 12540X1312-20P PRIMARY | Western Valve Inc (USA) |
NSN 4820-01-436-8397 is a Valve,angle, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-436-8397 has 3 manufacturer part numbers on file: 592-6768203 (Naval Sea Systems Command), 6768203 (Naval Sea Systems Command), 12540X1312-20P (Western Valve Inc).
Key specifications for 6768203: Furnished Items and Quantity: 1 RELIEF PLUG; Surface Treatment Document and Classification: QQ-C-320,CL 2,TY 1 FED SPEC 1ST TREATMENT RESPONSE AND QQ-N-290,CL 2,TY VII FED SPEC 2ND TREATMENT RESPONSE; Supplementary Features: SPECIAL CLEANING FOR OXYGEN SERVICE PER MIL-STD-1330; Criticality Code Justification: SUPP. 16 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.