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2129019 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2129019: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A FIRST END A, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END, special_features: INLET FILTER INCLUDED, style_designator: ANGLE, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-005-7601, 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
2129019
NSN: 4820-00-005-7601
FSC: 4820 — Valves, Nonpowered
CAGE: 86403 — CHRYSLER CORP SERVICE AND PARTS OPNS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A FIRST END A
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
special_featuresINLET FILTER INCLUDED
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
disk_loading_methodSPRING
flow_control_deviceBALL
nominal_thread_size0.500 INCHES FIRST END IN
valve_operation_methodAUTOMATIC
bonnet_attachment_methodINTEGRAL
thread_series_designatorUNF FIRST END
NSN4820-00-005-7601
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2129019 · 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: BALL
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
•
STYLE DESIGNATOR: ANGLE
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
•
DISK LOADING METHOD: SPRING
•
BONNET ATTACHMENT METHOD: INTEGRAL
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEBALL
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
DISK LOADING METHODSPRING
SPECIAL FEATURESINLET FILTER INCLUDED
BONNET ATTACHMENT METHODINTEGRAL
THREAD CLASS2A FIRST END A
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
22111Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2129019?
2129019 is a VALVE,SAFETY RELIEF.
What parts can replace 2129019?
There is 1 known substitute for 2129019: 22111. Substitute compatibility should be verified for your specific system.
What is the NSN for 2129019?
2129019 is cataloged in the U.S. Government catalog under NSN 4820-00-005-7601. 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.