The Valve,safety Relief, cataloged under National Stock Number 4820-00-460-6797, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Saf Industries Llc Dba Saf Industries Llc Div Garkenyon. Government technical data includes 28 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-460-6797 |
| Primary Part Number | 8LV669 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon |
| Status | ACTIVE |
| Flow Control Device | POPPETPOPPET |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Connection Style | FLARED (TUBE) ALL ENDSFLARED (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | AISI 416 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | AISI 416 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICESAE CA360 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | AISI 416 ASSN STD SINGLE MATERIAL RESPONSE STEMAISI 416 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | SAE CA360 ASSN STD SINGLE MATERIAL RESPONSE SEATSAE CA360 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDEPRESSURE TIGHT OUTLET SIDE |
| Thread Direction | RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS0.562 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRINGSPRING |
| Surface Treatment | ANODIZE LOCATION NOT OTHERWISE SPECIFIED |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS3A ALL ENDS A |
| Material | STEEL COMP 416 STEM |
| Material | COPPER ALLOY SEATCOPPER ALLOY BODY |
| Material | STEEL COMP 416 FLOW CONTROL DEVICECOPPER ALLOY SEAT |
| Material | STEEL COMP 416 STEMSTEEL COMP 416 FLOW CONTROL DEVICE |
| Thread Series Designator | UNF ALL ENDS |
| Opening Pressure Setting | 210.0 POUNDS PER SQUARE INCH LBS |
| Valve Discharge Flow Rate | 3.5 GALLONS PER MINUTE3.5 GALLONS PER MINUTE |
| Valve Operation Method | AUTOMATICAUTOMATIC |
| 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 |
|---|---|
| 8LV669 PRIMARY | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon (USA) |
NSN 4820-00-460-6797 is a Valve,safety Relief, manufactured by Saf Industries Llc Dba Saf Industries Llc Div Garkenyon, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-460-6797 has 1 manufacturer part number on file: 8LV669 (Saf Industries Llc Dba Saf Industries Llc Div Garkenyon).
Key specifications for 8LV669: Flow Control Device: POPPETPOPPET; Surface Treatment Document and Classification: MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED; Connection Style: FLARED (TUBE) ALL ENDSFLARED (TUBE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS. 28 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.