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PartsTable / COMPONENT / 520GPS-4
520GPS-4 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The VALVE,ASSEMBLY is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-045-0373, 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
520GPS-4
NSN: 4820-01-045-0373
FSC: 4820
CAGE: 08996 — SAF INDUSTRIES LLC DBA GENERAL PNEUMATICS (USA)
SPECIFICATIONS
general_characteristics_item_descriptionPART CONSISTS OF 2 BEARING. SHAFTS; 1 FITTING BOTTLE; 1 SPACER; 2 PISTONS; 1 SPRING REGULATOR; 1 TUBE; 1 FITTING GAUGE PROTECTOR; 1 SHELL GAUGE PROTECTOR; 1 RELIEF DEVICE
NSN4820-01-045-0373
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 520GPS-4 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: PART CONSISTS OF 2 BEARING. SHAFTS; 1 FITTING BOTTLE; 1 SPACER; 2 PISTONS; 1 SPRING REGULATOR; 1 TUBE; 1 FITTING GAUGE PROTECTOR; 1 SHELL GAUGE PROTECTOR; 1 RELIEF DEVICE
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPART CONSISTS OF 2 BEARING. SHAFTS; 1 FITTING BOTTLE; 1 SPACER; 2 PISTONS; 1 SPRING REGULATOR; 1 TUBE; 1 FITTING GAUGE PROTECTOR; 1 SHELL GAUGE PROTECTOR; 1 RELIEF DEVICE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
OLDENInterchangeable
interchangeable cross-reference
interchangeable
A2329Interchangeable
interchangeable cross-reference
interchangeable
E29Interchangeable
interchangeable cross-reference
interchangeable
TV7BUInterchangeable
interchangeable cross-reference
interchangeable
MILT12424Interchangeable
interchangeable cross-reference
interchangeable
D29Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 520GPS-4?
520GPS-4 is a VALVE,ASSEMBLY.
What parts can replace 520GPS-4?
There are 6 known substitutes for 520GPS-4: OLDEN, A2329, E29 and 3 more. Substitute compatibility should be verified for your specific system.
Is 520GPS-4 still available?
520GPS-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026