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B-800-12791-401 — DECK BOX OPERATOR,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B-800-12791-401: DECK BOX OPERATOR,VALVE.

The DECK BOX OPERATOR,VALVE is a the manufacturer industrial component. Key specifications include mounting_facility: FLANGE, mounting_flange_diameter: 7.000 INCHES NOMINAL IN, flange_bolt_hole_diameter: 0.312 INCHES NOMINAL IN, furnished_items_and_quantity: 1 POSITION INDICATOR, mounting_flange_bolt_hole_quantity: 10. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-411-9517, 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
B-800-12791-401
NSN: 4820-01-411-9517
FSC: 4820 — Valves, Nonpowered
CAGE: 72166 — B.W. ELLIOTT MANUFACTURING CO., LLC (USA)
SPECIFICATIONS
mounting_facilityFLANGE
mounting_flange_diameter7.000 INCHES NOMINAL IN
flange_bolt_hole_diameter0.312 INCHES NOMINAL IN
furnished_items_and_quantity1 POSITION INDICATOR
mounting_flange_bolt_hole_quantity10
NSN4820-01-411-9517
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-800-12791-401 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 POSITION INDICATOR
•
MOUNTING FLANGE BOLT HOLE QUANTITY: 10
•
FLANGE BOLT HOLE DIAMETER: 0.312 INCHES NOMINAL IN
•
MOUNTING FACILITY: FLANGE
•
MOUNTING FLANGE DIAMETER: 7.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 POSITION INDICATOR
MOUNTING FLANGE BOLT HOLE QUANTITY10
FLANGE BOLT HOLE DIAMETER0.312 INCHES NOMINAL IN
MOUNTING FACILITYFLANGE
MOUNTING FLANGE DIAMETER7.000 INCHES NOMINAL IN
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
12791 ASSY B-800-12791-401Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 B-800-12791-401?
B-800-12791-401 is a DECK BOX OPERATOR,VALVE.
What parts can replace B-800-12791-401?
There is 1 known substitute for B-800-12791-401: 12791 ASSY B-800-12791-401. Substitute compatibility should be verified for your specific system.
What is the NSN for B-800-12791-401?
B-800-12791-401 is cataloged in the U.S. Government catalog under NSN 4820-01-411-9517. 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.