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437937-1 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

437937-1: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A SECOND END A, connection_style: SWIVEL NUT, FLARE(TUBE) FIRST END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-060-6445, 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
437937-1
NSN: 4820-00-060-6445
FSC: 4820 — Valves, Nonpowered
CAGE: 37695 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class3A SECOND END A
connection_styleSWIVEL NUT, FLARE(TUBE) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
features_providedPRESSURE TIGHT OUTLET SIDE
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.750 INCHES SECOND END IN
valve_operation_methodAUTOMATIC
opening_pressure_setting0.288 POUNDS PER SQUARE INCH LBS
NSN4820-00-060-6445
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 437937-1 · 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
•
CONNECTION STYLE: FLARED (TUBE) SECOND END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,ALLOY2024 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES SECOND END IN
•
FEATURES PROVIDED: PRESSURE TIGHT OUTLET SIDE
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
CONNECTION STYLEFLARED (TUBE) SECOND END
CONNECTION STYLESWIVEL NUT, FLARE(TUBE) FIRST END
STYLE DESIGNATORSTRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY2024 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
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 1
P9-533Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 437937-1?
437937-1 is a VALVE,SAFETY RELIEF.
What parts can replace 437937-1?
There is 1 known substitute for 437937-1: P9-533. Substitute compatibility should be verified for your specific system.
What is the NSN for 437937-1?
437937-1 is cataloged in the U.S. Government catalog under NSN 4820-00-060-6445. This indicates validated use in U.S. government and defense supply chains.
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