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4557020 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4557020: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include body_style: STRAIGHT THRU, regulation_type: MANUAL SINGLE STAGE, special_features: T.O.21M-LGM30G-2-33; 500CC/MIN; GAGE INCLUDED; 5/8-18UNF W/ O-RING INLET, mounting_facility: EXTERNAL THREAD, manual_control_method: KNOB, end_item_identification: LGM-30 PAC III GAS MONITOR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-592-6210, 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
4557020
NSN: 4820-01-592-6210
FSC: 4820 — Valves, Nonpowered
CAGE: 0Z5B2 — NATIONAL DRAGER INC (USA)
SPECIFICATIONS
body_styleSTRAIGHT THRU
regulation_typeMANUAL SINGLE STAGE
special_featuresT.O.21M-LGM30G-2-33; 500CC/MIN; GAGE INCLUDED; 5/8-18UNF W/ O-RING INLET
mounting_facilityEXTERNAL THREAD
manual_control_methodKNOB
end_connection_quantity2
end_item_identificationLGM-30 PAC III GAS MONITOR
media_for_which_designedNITROUS DIOXIDE
maximum_inlet_pressure_ratingERR-060
part_name_assigned_by_controlling_agencySTANDARD REGULATOR
NSN4820-01-592-6210
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4557020 · 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
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: MANUAL SINGLE STAGE
•
END CONNECTION QUANTITY: 2
•
MANUAL CONTROL METHOD: KNOB
•
MOUNTING FACILITY: EXTERNAL THREAD
TECHNICAL CHARACTERISTICS
BODY STYLESTRAIGHT THRU
REGULATION TYPEMANUAL SINGLE STAGE
END CONNECTION QUANTITY2
MANUAL CONTROL METHODKNOB
MOUNTING FACILITYEXTERNAL THREAD
SPECIAL FEATUREST.O.21M-LGM30G-2-33; 500CC/MIN; GAGE INCLUDED; 5/8-18UNF W/ O-RING INLET
PART NAME ASSIGNED BY CONTROLLING AGENCYSTANDARD REGULATOR
END ITEM IDENTIFICATIONLGM-30 PAC III GAS MONITOR
MEDIA FOR WHICH DESIGNEDNITROUS DIOXIDE
MAXIMUM INLET PRESSURE RATINGERR-060
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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 4557020?
4557020 is a VALVE,REGULATING,FLUID PRESSURE.
What is the NSN for 4557020?
4557020 is cataloged in the U.S. Government catalog under NSN 4820-01-592-6210. This indicates validated use in U.S. government and defense supply chains.
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