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45M-310 — PISTON,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

45M-310: PISTON,VALVE.

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, special_features: MARINE SERVICE, valve_design_control_activity: 21013, valve_size_for_which_designed: 2.000 INCHES IN, valve_type_for_which_designed: PRESSURE REDUCING, valve_model_number_for_which_designed: M900P-200-FL-3W W. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-366-0737, 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
45M-310
NSN: 4820-01-366-0737
FSC: 4820 — Valves, Nonpowered
CAGE: 21013 — METREX VALVE CORP. DBA METREX VALVE CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY
special_featuresMARINE SERVICE
valve_design_control_activity21013
valve_size_for_which_designed2.000 INCHES IN
valve_type_for_which_designedPRESSURE REDUCING
valve_model_number_for_which_designedM900P-200-FL-3W W
NSN4820-01-366-0737
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 45M-310 · 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
•
VALVE TYPE FOR WHICH DESIGNED: PRESSURE REDUCING
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: M900P-200-FL-3W W
•
VALVE SIZE FOR WHICH DESIGNED: 2.000 INCHES IN
•
VALVE DESIGN CONTROL ACTIVITY: 21013
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDPRESSURE REDUCING
VALVE MODEL NUMBER FOR WHICH DESIGNEDM900P-200-FL-3W W
VALVE SIZE FOR WHICH DESIGNED2.000 INCHES IN
SPECIAL FEATURESMARINE SERVICE
VALVE DESIGN CONTROL ACTIVITY21013
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 1
M900P-200-FL-3W ITEM 15Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 45M-310?
45M-310 is a PISTON,VALVE.
What parts can replace 45M-310?
There is 1 known substitute for 45M-310: M900P-200-FL-3W ITEM 15. Substitute compatibility should be verified for your specific system.
What is the NSN for 45M-310?
45M-310 is cataloged in the U.S. Government catalog under NSN 4820-01-366-0737. 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.