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145DS520-1 — VALVE,BYPASS

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

145DS520-1: VALVE,BYPASS.

The VALVE,BYPASS is a the manufacturer industrial component. Key specifications include body_width: 2.500 INCHES NOMINAL IN, body_height: 2.000 INCHES NOMINAL IN, body_length: 2.875 INCHES NOMINAL IN, input_phase: SINGLE SINGLE OPERATING POWER RQMT, overall_width: 2.300 INCHES NOMINAL IN, inclosure_type: OPEN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-115-9241, 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
145DS520-1
NSN: 4820-01-115-9241
FSC: 4820 — Valves, Nonpowered
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
body_width2.500 INCHES NOMINAL IN
body_height2.000 INCHES NOMINAL IN
body_length2.875 INCHES NOMINAL IN
input_phaseSINGLE SINGLE OPERATING POWER RQMT
overall_width2.300 INCHES NOMINAL IN
inclosure_typeOPEN
overall_height4.000 INCHES NOMINAL IN
overall_length12.500 INCHES NOMINAL IN
mounting_methodTHREADED HOLE(S) SINGLE GROUP
power_unit_typeSEMICONDUCTOR DIODE FULL WAVE SINGLE OPERATING POWER RQMT
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
features_providedFILTER
NSN4820-01-115-9241
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 145DS520-1 · 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 145DS520-1?
145DS520-1 is a VALVE,BYPASS.
What is the NSN for 145DS520-1?
145DS520-1 is cataloged in the U.S. Government catalog under NSN 4820-01-115-9241. 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.