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238021 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

238021: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include first_leg_angle: 90.0 RADIANS NOMINAL, first_leg_style: SQUARE, first_leg_width: 20.0000 INCHES NOMINAL IN, first_leg_length: 2.0000 INCHES NOMINAL IN, second_leg_style: CORNER RADIUS, second_leg_width: 20.0000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-930-7420, 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
238021
NSN: 4820-00-930-7420
NIINs: 009307420, 014457781
FSC: 4820 — Valves, Nonpowered
CAGE: 81833 — AEROCONTROLEX GROUP, INC. (USA)
SPECIFICATIONS
first_leg_angle90.0 RADIANS NOMINAL
first_leg_styleSQUARE
first_leg_width20.0000 INCHES NOMINAL IN
first_leg_length2.0000 INCHES NOMINAL IN
second_leg_styleCORNER RADIUS
second_leg_width20.0000 INCHES NOMINAL IN
style_designatorANGLE
second_leg_length4.3750 INCHES NOMINAL IN
mounting_hole_typePLAIN
second_leg_corner_radius1.5000 INCHES NOMINAL IN
second_leg_hole_diameter0.1250 INCHES NOMINAL IN
first_leg_hole_arrangement_styleNO HOLE
NSN4820-00-930-7420
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 238021 · 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: SWIVEL NUT, FLARED (TUBE) FIRST END
•
SEAT NOMINAL RADIUS: 0.005 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
FEATURES PROVIDED: PRESSURE TIGHT OUTLET SIDE
•
THREAD DIRECTION: RIGHT-HAND FIRST END
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
CONNECTION STYLESWIVEL NUT, FLARED (TUBE) FIRST END
SEAT NOMINAL RADIUS0.005 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.437 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
696771-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 238021?
238021 is a VALVE,SAFETY RELIEF.
What parts can replace 238021?
There is 1 known substitute for 238021: 696771-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 238021?
238021 is cataloged in the U.S. Government catalog under NSN 4820-00-930-7420. This indicates validated use in U.S. government and defense supply chains.
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