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51729E006 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

51729E006: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, special_features: VALVE SIZE 6IN. IN, style_designator: PLAIN, body_inside_diameter: 6.000 INCHES NOMINAL IN, seating_surface_shape: FLAT, material_document_and_classification: QQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE SEAT.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-281-1630, 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
51729E006
NSN: 4820-01-281-1630
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
special_featuresVALVE SIZE 6IN. IN
style_designatorPLAIN
body_inside_diameter6.000 INCHES NOMINAL IN
seating_surface_shapeFLAT
material_document_and_classificationQQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE SEAT
NSN4820-01-281-1630
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51729E006 · 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
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE SEAT
•
BODY INSIDE DIAMETER: 6.000 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY SEAT
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE SEAT
BODY INSIDE DIAMETER6.000 INCHES NOMINAL IN
SPECIAL FEATURESVALVE SIZE 6IN. IN
MATERIALNICKEL ALLOY SEAT
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

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 51729E006?
51729E006 is a SEAT,VALVE.
What is the NSN for 51729E006?
51729E006 is cataloged in the U.S. Government catalog under NSN 4820-01-281-1630. 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.