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BUWEPSDWG1557002 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

BUWEPSDWG1557002: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include seat_angle_in_deg: 35.000 NOMINAL, taper_minor_diameter: 0.809 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN, seating_surface_shape: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-977-2838, 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
BUWEPSDWG1557002
NSN: 4810-00-977-2838
FSC: 4810 — Valves, Powered
CAGE: 94580 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE-MINNEAPOLIS (USA)
SPECIFICATIONS
seat_angle_in_deg35.000 NOMINAL
taper_minor_diameter0.809 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
NSN4810-00-977-2838
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: BUWEPSDWG1557002 · 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
•
TAPER MINOR DIAMETER: 0.809 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN
•
SEAT ANGLE IN DEG: 35.000 NOMINAL
•
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS
TAPER MINOR DIAMETER0.809 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN
SEAT ANGLE IN DEG35.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES 1
1557002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BUWEPSDWG1557002?
BUWEPSDWG1557002 is a SEAT,VALVE.
What parts can replace BUWEPSDWG1557002?
There is 1 known substitute for BUWEPSDWG1557002: 1557002. Substitute compatibility should be verified for your specific system.
What is the NSN for BUWEPSDWG1557002?
BUWEPSDWG1557002 is cataloged in the U.S. Government catalog under NSN 4810-00-977-2838. 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.