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751C877-5 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

751C877-5: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include seat_radius: 1.198 INCHES MINIMUM AND 1.208 INCHES MAXIMUM IN, taper_length: 1.500 INCHES NOMINAL IN, hardness_rating: 40.0 ROCKWELL C NOMINAL FACE, seating_surface_shape: RADIAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-086-6795, 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
751C877-5
NSN: 4820-00-086-6795
FSC: 4820 — Valves, Nonpowered
CAGE: 24446 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
seat_radius1.198 INCHES MINIMUM AND 1.208 INCHES MAXIMUM IN
taper_length1.500 INCHES NOMINAL IN
hardness_rating40.0 ROCKWELL C NOMINAL FACE
seating_surface_shapeRADIAL
NSN4820-00-086-6795
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 751C877-5 · 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
•
HARDNESS RATING: 40.0 ROCKWELL C NOMINAL FACE
•
TAPER LENGTH: 1.500 INCHES NOMINAL IN
•
SEAT RADIUS: 1.198 INCHES MINIMUM AND 1.208 INCHES MAXIMUM IN
•
SEATING SURFACE SHAPE: RADIAL
TECHNICAL CHARACTERISTICS
HARDNESS RATING40.0 ROCKWELL C NOMINAL FACE
TAPER LENGTH1.500 INCHES NOMINAL IN
SEAT RADIUS1.198 INCHES MINIMUM AND 1.208 INCHES MAXIMUM IN
SEATING SURFACE SHAPERADIAL
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 751C877-5?
751C877-5 is a SEAT,VALVE.
What is the NSN for 751C877-5?
751C877-5 is cataloged in the U.S. Government catalog under NSN 4820-00-086-6795. 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.