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51310E173 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

51310E173: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, pressure_rating: 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, outside_diameter: 4.000 INCHES NOMINAL IN, style_designator: BUTTERFLY, end_item_identification: NORRIS BUTTERFLY VALVE,M-SERIES. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-285-8437, 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
51310E173
NSN: 4820-01-285-8437
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY
pressure_rating200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
outside_diameter4.000 INCHES NOMINAL IN
style_designatorBUTTERFLY
end_item_identificationNORRIS BUTTERFLY VALVE,M-SERIES
NSN4820-01-285-8437
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51310E173 · 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: 4.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTTERFLY
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
PRESSURE RATING200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
OUTSIDE DIAMETER4.000 INCHES NOMINAL IN
STYLE DESIGNATORBUTTERFLY
END ITEM IDENTIFICATIONNORRIS BUTTERFLY VALVE,M-SERIES
MATERIALCOPPER ALLOY
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 51310E173?
51310E173 is a DISK,VALVE.
What is the NSN for 51310E173?
51310E173 is cataloged in the U.S. Government catalog under NSN 4820-01-285-8437. 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.