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B5649-1 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B5649-1: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTRIFLUOROCHLOROETHYLENE OVERALL, overall_height: 0.185 INCHES NOMINAL IN, style_designator: PLAIN, body_inside_diameter: 0.510 INCHES NOMINAL IN, body_outside_diameter: 0.650 INCHES NOMINAL IN, seating_surface_shape: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-922-1902, 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
B5649-1
NSN: 4820-00-922-1902
FSC: 4820 — Valves, Nonpowered
CAGE: 45543 — SNAP-TITE INC DBA SNAP TITE SOLENOID VALVE DIV (USA)
SPECIFICATIONS
materialPLASTIC POLYTRIFLUOROCHLOROETHYLENE OVERALL
overall_height0.185 INCHES NOMINAL IN
style_designatorPLAIN
body_inside_diameter0.510 INCHES NOMINAL IN
body_outside_diameter0.650 INCHES NOMINAL IN
seating_surface_shapeFLAT
NSN4820-00-922-1902
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B5649-1 · 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
•
BODY OUTSIDE DIAMETER: 0.650 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 0.510 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTRIFLUOROCHLOROETHYLENE OVERALL
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.185 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.650 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER0.510 INCHES NOMINAL IN
MATERIALPLASTIC POLYTRIFLUOROCHLOROETHYLENE OVERALL
SEATING SURFACE SHAPEFLAT
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 1
14013-68-00-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B5649-1?
B5649-1 is a SEAT,VALVE.
What parts can replace B5649-1?
There is 1 known substitute for B5649-1: 14013-68-00-00. Substitute compatibility should be verified for your specific system.
What is the NSN for B5649-1?
B5649-1 is cataloged in the U.S. Government catalog under NSN 4820-00-922-1902. 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.