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51310F178 — GEAR SECTOR,WORM WHEEL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

51310F178: GEAR SECTOR,WORM WHEEL.

The GEAR SECTOR,WORM WHEEL is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, pressure_rating: 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, outside_diameter: 6.000 INCHES NOMINAL IN, style_designator: BUTTERFLY, end_item_identification: FOR R-SERIES BUTTERFLY VALVES. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-103-9135, 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
51310F178
NSN: 4820-01-103-9135
FSC: 4820 — Valves, Nonpowered
CAGE: 91363 — NORRISEAL NORRIS VALUES DIV DBA DOVER CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY
pressure_rating200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
outside_diameter6.000 INCHES NOMINAL IN
style_designatorBUTTERFLY
end_item_identificationFOR R-SERIES BUTTERFLY VALVES
NSN4820-01-103-9135
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51310F178 · 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
•
PRESSURE RATING: 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
OUTSIDE DIAMETER: 6.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTTERFLY
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
PRESSURE RATING200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
OUTSIDE DIAMETER6.000 INCHES NOMINAL IN
STYLE DESIGNATORBUTTERFLY
END ITEM IDENTIFICATIONFOR R-SERIES BUTTERFLY VALVES
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
911-417 REF 2 6INSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
310F178Reference document
Same NSN cross-reference
Reference document — Secondary reference
911-417Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 51310F178?
51310F178 is a GEAR SECTOR,WORM WHEEL.
What parts can replace 51310F178?
There are 3 known substitutes for 51310F178: 911-417 REF 2 6IN, 310F178, 911-417. Substitute compatibility should be verified for your specific system.
What is the NSN for 51310F178?
51310F178 is cataloged in the U.S. Government catalog under NSN 4820-01-103-9135. 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.