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S520156301 — VALVE,FLOW CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S520156301: VALVE,FLOW CONTROL.

The VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C SEAT, valve_size: 3.000 INCHES IN, body_material: STEEL UNS J03002, seat_material: STEEL COMP 440C, pressure_class: ERR-060, connection_type: FLANGE, ROUND W/HOLES. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-441-7803, 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
S520156301
NSN: 4820-01-441-7803
NIINs: 014417803, 014417805, 014417806
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 440C SEAT
valve_size3.000 INCHES IN
body_materialSTEEL UNS J03002
seat_materialSTEEL COMP 440C
pressure_classERR-060
connection_typeFLANGE, ROUND W/HOLES
flange_diameter7.500 INCHES IN
bolt_hole_quantity4
flange_face_designRAISED
face_to_face_distance11.750 INCHES IN
end_connection_quantity2
end_item_identificationSUPPLY CLASS AOE
NSN4820-01-441-7803
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S520156301 · 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
•
FLANGE FACE DESIGN: RAISED
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BODY MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A216, GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE
•
CONNECTION TYPE: FLANGE, ROUND W/HOLES
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END CONNECTION QUANTITY: 2
•
VALVE SIZE: 3.000 INCHES IN
•
BODY MATERIAL: STEEL UNS J03002
•
BOLT HOLE QUANTITY: 4
•
FLANGE DIAMETER: 7.500 INCHES IN
TECHNICAL CHARACTERISTICS
FLANGE FACE DESIGNRAISED
BODY MATERIAL DOCUMENT AND CLASSIFICATIONASTM A216, GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE
CONNECTION TYPEFLANGE, ROUND W/HOLES
END CONNECTION QUANTITY2
VALVE SIZE3.000 INCHES IN
BODY MATERIALSTEEL UNS J03002
BOLT HOLE QUANTITY4
FLANGE DIAMETER7.500 INCHES IN
SEAT MATERIAL DOCUMENT AND CLASSIFICATIONAISI 440C ASSN STD SINGLE MATERIAL RESPONSE
FACE TO FACE DISTANCE11.750 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 1
S520156301 CDS-33137NReference 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 S520156301?
S520156301 is a VALVE,FLOW CONTROL.
What parts can replace S520156301?
There is 1 known substitute for S520156301: S520156301 CDS-33137N. Substitute compatibility should be verified for your specific system.
What is the NSN for S520156301?
S520156301 is cataloged in the U.S. Government catalog under NSN 4820-01-441-7803. 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.