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03063 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

03063: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL UNS K08500 OVERALL, stock_diameter: 0.023 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 1.250 INCHES NOMINAL IN, coil_helix_direction: RIGHT-HAND, spring_deflection_rate: 5.300 POUNDS PER INCH NOMINAL LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-312-0279, 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
03063
NSN: 4820-01-312-0279
NIINs: 013120279, 013782129
FSC: 4820 — Valves, Nonpowered
CAGE: 57328 — BAUER COMPRESSORS, INC. (USA)
SPECIFICATIONS
materialSTEEL UNS K08500 OVERALL
stock_diameter0.023 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length1.250 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_deflection_rate5.300 POUNDS PER INCH NOMINAL LBS
valve_operation_methodAUTOMATIC
end_item_identificationBAUER COMPRESSOR,COMPRESSOR,MODEL K20DD
opening_pressure_setting3200.0 POUNDS PER SQUARE INCH LBS
spring_free_outside_diameter0.187 INCHES NOMINAL IN
NSN4820-01-312-0279
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 03063 · 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
•
OPENING PRESSURE SETTING: 3200.0 POUNDS PER SQUARE INCH LBS
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONBAUER COMPRESSOR,COMPRESSOR,MODEL K20DD
OPENING PRESSURE SETTING3200.0 POUNDS PER SQUARE INCH LBS
VALVE OPERATION METHODAUTOMATIC
SUBSTITUTES & CROSS-REFERENCES 2
003063Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
03063-340Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 03063?
03063 is a VALVE,SAFETY RELIEF.
What parts can replace 03063?
There are 2 known substitutes for 03063: 003063, 03063-340. Substitute compatibility should be verified for your specific system.
What is the NSN for 03063?
03063 is cataloged in the U.S. Government catalog under NSN 4820-01-312-0279. 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.