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937849 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

937849: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 BODY, bonnet_type: INSIDE SPRING, style_designator: ANGLE, surface_treatment: PASSIVATE LOCATION NOT OTHERWISE SPECIFIED, operating_pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 225.0 FAHRENHEIT SINGLE RESPONSE DEGF. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-341-8188, 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
937849
NSN: 4820-01-341-8188
FSC: 4820 — Valves, Nonpowered
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL COMP 303 BODY
bonnet_typeINSIDE SPRING
style_designatorANGLE
surface_treatmentPASSIVATE LOCATION NOT OTHERWISE SPECIFIED
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp225.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4820-01-341-8188
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 937849 · 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
•
STYLE DESIGNATOR: ANGLE
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
BONNET TYPE: INSIDE SPRING
•
MAXIMUM OPERATING TEMP: 225.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
SURFACE TREATMENT: PASSIVATE LOCATION NOT OTHERWISE SPECIFIED
•
MATERIAL: STEEL COMP 303 BODY
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORANGLE
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
BONNET TYPEINSIDE SPRING
MAXIMUM OPERATING TEMP225.0 FAHRENHEIT SINGLE RESPONSE DEGF
SURFACE TREATMENTPASSIVATE LOCATION NOT OTHERWISE SPECIFIED
MATERIALSTEEL COMP 303 BODY
SUBSTITUTES & CROSS-REFERENCES 1
644XB-4-122Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 937849?
937849 is a VALVE,SAFETY RELIEF.
What parts can replace 937849?
There is 1 known substitute for 937849: 644XB-4-122. Substitute compatibility should be verified for your specific system.
What is the NSN for 937849?
937849 is cataloged in the U.S. Government catalog under NSN 4820-01-341-8188. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.