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Technical Data Sheet

P8/9/12 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

P8/9/12: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY SEAT, bonnet_type: INSIDE SPRING, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN,OPTIONAL END(PIPE) FIRST END, special_features: CLEAN FOR OXYGEN, style_designator: ANGLE. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-998-1739, 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
P8/9/12
NSN: 4820-00-998-1739
NIINs: 009981739, 014427886
FSC: 4820 — Valves, Nonpowered
CAGE: 99251 — MISSION SYSTEMS DAVENPORT INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY SEAT
bonnet_typeINSIDE SPRING
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN,OPTIONAL END(PIPE) FIRST END
special_featuresCLEAN FOR OXYGEN
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
features_providedVALVE STEM LOCK SHIELD AND BONNET PACKING AND PRESSURE TIGHT OUTLET SIDE
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.250 INCHES FIRST END IN
NSN4820-00-998-1739
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: P8/9/12 · 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: POPPET
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) FIRST END
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END IN
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CRITICALITY CODE JUSTIFICATIONFEAT
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
STYLE DESIGNATORANGLE
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P8/9/12?
P8/9/12 is a VALVE,SAFETY RELIEF.
What is the NSN for P8/9/12?
P8/9/12 is cataloged in the U.S. Government catalog under NSN 4820-00-998-1739. This indicates validated use in U.S. government and defense supply chains.
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