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51310B177 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

51310B177: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM AND COPPER ALLOY, special_features: VALVE SIZE 6IN IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-333-1793, 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
51310B177
NSN: 4820-01-333-1793
FSC: 4820 — Valves, Nonpowered
CAGE: 91363 — NORRISEAL NORRIS VALUES DIV DBA DOVER CO (USA)
SPECIFICATIONS
materialALUMINUM AND COPPER ALLOY
special_featuresVALVE SIZE 6IN IN
NSN4820-01-333-1793
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51310B177 · 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
•
MATERIAL: ALUMINUM AND COPPER ALLOY
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESVALVE SIZE 6IN IN
MATERIALALUMINUM AND COPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
513108177Reference document
Same NSN cross-reference
Reference document — Secondary reference
911-578 REF2Reference document
Same NSN cross-reference
Reference document — Secondary reference
911-578Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 51310B177?
51310B177 is a DISK,VALVE.
What parts can replace 51310B177?
There are 3 known substitutes for 51310B177: 513108177, 911-578 REF2, 911-578. Substitute compatibility should be verified for your specific system.
What is the NSN for 51310B177?
51310B177 is cataloged in the U.S. Government catalog under NSN 4820-01-333-1793. 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.