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501-5357245PIEC — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

501-5357245PIEC: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, bonnet_type: INSIDE SPRING, connection_style: STREAMLINED WITH ONE BRAZING RING ALL ENDS, style_designator: ANGLE, features_provided: PRESSURE TIGHT OUTLET SIDE, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-010-6019, 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
501-5357245PIEC
NSN: 4820-00-010-6019
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
bonnet_typeINSIDE SPRING
connection_styleSTREAMLINED WITH ONE BRAZING RING ALL ENDS
style_designatorANGLE
features_providedPRESSURE TIGHT OUTLET SIDE
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
maximum_operating_temp165.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
bonnet_attachment_methodBOLTED
media_for_which_designedAIR SINGLE RESPONSE
NSN4820-00-010-6019
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 501-5357245PIEC · 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
•
FLOW CONTROL DEVICE: DISK
•
FURNISHED ITEMS AND QUANTITY: 2 NUT AND 2 TAILPIECE AND 1 WRENCH
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
CONNECTION STYLE: STREAMLINED WITH ONE BRAZING RING ALL ENDS
•
STYLE DESIGNATOR: ANGLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-288 FED SPEC 2ND MATERIAL RESPONSE SEAT
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
FURNISHED ITEMS AND QUANTITY2 NUT AND 2 TAILPIECE AND 1 WRENCH
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES ALL ENDS IN
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING ALL ENDS
STYLE DESIGNATORANGLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-288 FED SPEC 2ND MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-288 FED SPEC 2ND MATERIAL RESPONSE BODY
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
BONNET TYPEINSIDE SPRING
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 3
60-20-1/2IN SETReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MILV22549Reference document
Same NSN cross-reference
Reference document — Identification reference
MILV22549G1-2 400-33T055SBUReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 501-5357245PIEC?
501-5357245PIEC is a VALVE,SAFETY RELIEF.
What parts can replace 501-5357245PIEC?
There are 3 known substitutes for 501-5357245PIEC: 60-20-1/2IN SET, MILV22549, MILV22549G1-2 400-33T055SBU. Substitute compatibility should be verified for your specific system.
What is the NSN for 501-5357245PIEC?
501-5357245PIEC is cataloged in the U.S. Government catalog under NSN 4820-00-010-6019. 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.