PartsTable
Technical Data Sheet
Download PDF

1895646 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1895646: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, taper_length: 0.125 INCHES NOMINAL IN, flange_diameter: 1.281 INCHES NOMINAL IN, special_features: REAMED SECOND END 0.250 IN. DIA BY 0.750 IN.

LG IN, style_designator: PLAIN FLANGED, seat_angle_in_deg: 45.000 NOMINAL. This part is cataloged in the U.S. Government catalog under NSN 4820-01-191-6465, 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
1895646
NSN: 4820-01-191-6465
FSC: 4820 — Valves, Nonpowered
CAGE: 64546 — DISCOVERY CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
taper_length0.125 INCHES NOMINAL IN
flange_diameter1.281 INCHES NOMINAL IN
special_featuresREAMED SECOND END 0.250 IN. DIA BY 0.750 IN. LG IN
style_designatorPLAIN FLANGED
seat_angle_in_deg45.000 NOMINAL
under_flange_height0.750 INCHES NOMINAL IN
body_inside_diameter0.781 INCHES NOMINAL IN
taper_major_diameter0.875 INCHES NOMINAL IN
body_outside_diameter1.159 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.688 INCHES NOMINAL IN
NSN4820-01-191-6465
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1895646 · 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 SEAT TO DISK END HEIGHT: 0.688 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.281 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.159 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
TAPER MAJOR DIAMETER: 0.875 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.781 INCHES NOMINAL IN
•
TAPER LENGTH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.688 INCHES NOMINAL IN
FLANGE DIAMETER1.281 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.159 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
TAPER MAJOR DIAMETER0.875 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.781 INCHES NOMINAL IN
TAPER LENGTH0.125 INCHES NOMINAL IN
SPECIAL FEATURESREAMED SECOND END 0.250 IN. DIA BY 0.750 IN. LG IN
UNDER FLANGE HEIGHT0.750 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
N5586Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 1895646?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1895646?
1895646 is a SEAT,VALVE.
What parts can replace 1895646?
There is 1 known substitute for 1895646: N5586. Substitute compatibility should be verified for your specific system.
What is the NSN for 1895646?
1895646 is cataloged in the U.S. Government catalog under NSN 4820-01-191-6465. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1895646

✓ 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.