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6861-1IN — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6861-1IN: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: SOCKET (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, mounting_position: HORIZONTAL, flow_control_device: DISK. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-078-4780, 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
6861-1IN
NSN: 4820-01-078-4780
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_styleSOCKET (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
mounting_positionHORIZONTAL
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
nominal_outside_diameter_tube_accommodated1.000 INCHES ALL ENDS IN
NSN4820-01-078-4780
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6861-1IN · 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: DISK
•
CONNECTION STYLE: SOCKET (TUBE) ALL ENDS
•
MOUNTING POSITION: HORIZONTAL
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.000 INCHES ALL ENDS IN
•
MATERIAL: STEEL CORROSION RESISTING BODY
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
CONNECTION STYLESOCKET (TUBE) ALL ENDS
MOUNTING POSITIONHORIZONTAL
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES ALL ENDS IN
MATERIALSTEEL CORROSION RESISTING BODY
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 6861-1IN?
6861-1IN is a VALVE,CHECK.
What is the NSN for 6861-1IN?
6861-1IN is cataloged in the U.S. Government catalog under NSN 4820-01-078-4780. 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.