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313850 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

313850: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include thread_class: 3B FIRST END, connection_type: THREADED INTERNAL BOSS FIRST END, connection_style: GASKET SEAL(BOSS) FIRST END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END, surface_treatment: ANODIZE LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-541-0454, 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
313850
NSN: 4820-00-541-0454
NIINs: 005410454, 012667796
FSC: 4820 — Valves, Nonpowered
CAGE: 81982 — HYDRO-AIRE AEROSPACE CORP (USA)
SPECIFICATIONS
thread_class3B FIRST END
connection_typeTHREADED INTERNAL BOSS FIRST END
connection_styleGASKET SEAL(BOSS) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
surface_treatmentANODIZE LOCATION NOT OTHERWISE SPECIFIED
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
nominal_thread_size0.562 INCHES FIRST END IN
media_for_which_designedHYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
opening_pressure_setting300.0 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch18 FIRST END
NSN4820-00-541-0454
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 313850 · 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
•
CONNECTION STYLE: GASKET SEAL(BOSS) FIRST END
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.562 INCHES FIRST END IN
•
DISK LOADING METHOD: SPRING
•
SURFACE TREATMENT: ANODIZE LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGASKET SEAL(BOSS) FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
DISK LOADING METHODSPRING
SURFACE TREATMENTANODIZE LOCATION NOT OTHERWISE SPECIFIED
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
THREAD CLASS3B FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
37F39720Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 313850?
313850 is a VALVE,SAFETY RELIEF.
What parts can replace 313850?
There is 1 known substitute for 313850: 37F39720. Substitute compatibility should be verified for your specific system.
What is the NSN for 313850?
313850 is cataloged in the U.S. Government catalog under NSN 4820-00-541-0454. This indicates validated use in U.S. government and defense supply chains.
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