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C43170-2 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

C43170-2: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 FLOW CONTROL DEVICE, style_designator: STRAIGHT THRU, operating_pressure: 4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, disk_loading_method: SPRING, flow_control_device: POPPET, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-116-0075, 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
C43170-2
NSN: 4820-00-116-0075
FSC: 4820 — Valves, Nonpowered
CAGE: 77842 — EATON CORPORATION DBA EATON INOAC DIV EATON (USA)
SPECIFICATIONS
materialSTEEL COMP 416 FLOW CONTROL DEVICE
style_designatorSTRAIGHT THRU
operating_pressure4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
valve_operation_methodAUTOMATIC
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
renewable_seat_ring_typePRESSED-IN
NSN4820-00-116-0075
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: C43170-2 · 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
•
FLOW CONTROL DEVICE: POPPET
•
RENEWABLE SEAT RING TYPE: PRESSED-IN
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
DISK LOADING METHOD: SPRING
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
MATERIAL: STEEL COMP 316 BODY
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
RENEWABLE SEAT RING TYPEPRESSED-IN
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
DISK LOADING METHODSPRING
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
MATERIALSTEEL COMP 316 BODY
MATERIALSTEEL COMP 416 FLOW CONTROL DEVICE
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE SEAT
VALVE OPERATION METHODAUTOMATIC
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
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)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C43170-2?
C43170-2 is a VALVE,CHECK.
What is the NSN for C43170-2?
C43170-2 is cataloged in the U.S. Government catalog under NSN 4820-00-116-0075. 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.