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4M4F-RL4A-VT-SS-MN-KB — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4M4F-RL4A-VT-SS-MN-KB: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC PACKING, special_features: RING MATL PTFE; SPRING KIT INCLUDED, operating_pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: MANUAL, part_name_assigned_by_controlling_agency: ADJUSTABLE RELIEF VALVE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-666-9626, 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
4M4F-RL4A-VT-SS-MN-KB
NSN: 4820-01-666-9626
FSC: 4820 — Valves, Nonpowered
CAGE: 54939 — PARKER-HANNIFIN CORP DIV INSTRUMENTATION PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC PACKING
special_featuresRING MATL PTFE; SPRING KIT INCLUDED
operating_pressure50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodMANUAL
part_name_assigned_by_controlling_agencyADJUSTABLE RELIEF VALVE
NSN4820-01-666-9626
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4M4F-RL4A-VT-SS-MN-KB · 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
•
OPERATING PRESSURE: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: RUBBER SYNTHETIC PACKING
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
OPERATING PRESSURE50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SPECIAL FEATURESRING MATL PTFE; SPRING KIT INCLUDED
PART NAME ASSIGNED BY CONTROLLING AGENCYADJUSTABLE RELIEF VALVE
MATERIALRUBBER SYNTHETIC PACKING
MATERIALSTEEL STAINLESS - USE STB000 BODY
VALVE OPERATION METHODMANUAL
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 4M4F-RL4A-VT-SS-MN-KB?
4M4F-RL4A-VT-SS-MN-KB is a VALVE,SAFETY RELIEF.
What is the NSN for 4M4F-RL4A-VT-SS-MN-KB?
4M4F-RL4A-VT-SS-MN-KB is cataloged in the U.S. Government catalog under NSN 4820-01-666-9626. 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.