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B-51019-21 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B-51019-21: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include flange_shape: ROUND FIRST END, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN,OPTIONAL END(PIPE) FIRST END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END, flange_face_design: RAISED STRAIGHT FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-697-2075, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
B-51019-21
NSN: 4820-01-697-2075
FSC: 4820 — Valves, Nonpowered
CAGE: 08407 — MIRADA RESEARCH & MANUFACTURING, INC. (USA)
SPECIFICATIONS
flange_shapeROUND FIRST END
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN,OPTIONAL END(PIPE) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
flange_face_designRAISED STRAIGHT FIRST END
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size1.0625 INCHES FIRST END IN
valve_operation_methodAUTOMATIC
opening_pressure_setting21.0 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch12 FIRST END
NSN4820-01-697-2075
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-51019-21 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW CONTROL DEVICE: DISK
•
FLANGE SHAPE: ROUND FIRST END
•
FLANGE FACE DESIGN: RAISED STRAIGHT FIRST END
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
THREAD DIRECTION: RIGHT-HAND FIRST END
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
FLANGE SHAPEROUND FIRST END
FLANGE FACE DESIGNRAISED STRAIGHT FIRST END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPEFLANGE FIRST END
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE1.0625 INCHES FIRST END IN
DISK LOADING METHODSPRING
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B-51019-21?
B-51019-21 is a VALVE,SAFETY RELIEF.
What is the NSN for B-51019-21?
B-51019-21 is cataloged in the U.S. Government catalog under NSN 4820-01-697-2075. This indicates validated use in U.S. government and defense supply chains.
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