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570865-4 — SERVOVALVE,HYDRAULIC

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

570865-4: SERVOVALVE,HYDRAULIC.

The SERVOVALVE,HYDRAULIC is a the manufacturer industrial component. Key specifications include material: STEEL, end_style: VERTEX BELOW CENTER, ring_style: STRAIGHT GAP, usage_design: INTERNAL, inside_diameter: 6.125 INCHES NOMINAL IN, major_thickness: 0.068 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-171-0149, 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
570865-4
NSN: 4820-01-171-0149
FSC: 4820 — Valves, Nonpowered
CAGE: 49956 — RAYTHEON COMPANY DIV CORP (USA)
SPECIFICATIONS
materialSTEEL
end_styleVERTEX BELOW CENTER
ring_styleSTRAIGHT GAP
usage_designINTERNAL
inside_diameter6.125 INCHES NOMINAL IN
major_thickness0.068 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
outside_diameter6.625 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationB-118 FSCM 97286 MFR REF SINGLE MATERIAL RESPONSE
NSN4820-01-171-0149
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 570865-4 · 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 570865-4?
570865-4 is a SERVOVALVE,HYDRAULIC.
What is the NSN for 570865-4?
570865-4 is cataloged in the U.S. Government catalog under NSN 4820-01-171-0149. 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.