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629J430 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

629J430: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, connection_type: FLANGE FIRST END, special_features: VALVE SIZE 2 IN. IN, valve_operation_method: AUTOMATIC, opening_pressure_setting: 20.0 POUNDS PER SQUARE INCH LBS.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-236-5975, 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
629J430
NSN: 4820-01-236-5975
FSC: 4820 — Valves, Nonpowered
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeFLANGE FIRST END
special_featuresVALVE SIZE 2 IN. IN
valve_operation_methodAUTOMATIC
opening_pressure_setting20.0 POUNDS PER SQUARE INCH LBS
NSN4820-01-236-5975
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 629J430 · 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 TYPE: FLANGE FIRST END
•
MATERIAL: COPPER ALLOY BODY
•
OPENING PRESSURE SETTING: 20.0 POUNDS PER SQUARE INCH LBS
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
CONNECTION TYPEFLANGE FIRST END
SPECIAL FEATURESVALVE SIZE 2 IN. IN
MATERIALCOPPER ALLOY BODY
OPENING PRESSURE SETTING20.0 POUNDS PER SQUARE INCH LBS
VALVE OPERATION METHODAUTOMATIC
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
629J430 PIECE 9Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 629J430?
629J430 is a VALVE,SAFETY RELIEF.
What parts can replace 629J430?
There is 1 known substitute for 629J430: 629J430 PIECE 9. Substitute compatibility should be verified for your specific system.
What is the NSN for 629J430?
629J430 is cataloged in the U.S. Government catalog under NSN 4820-01-236-5975. 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.