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PartsTable / COMPONENT / 4749-1 ASSY FE-150-BS-VIR-0800
4749-1 ASSY FE-150-BS-VIR-0800 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: COPPER ALLOY 954 BODY, valve_size: 8.000 INCHES IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, special_features: FLANGE SERRATED GASKET FINISH,SPRING MATL:INCONEL, style_designator: STRAIGHT THRU FLANGED ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-497-3181, 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
4749-1 ASSY FE-150-BS-VIR-0800
NSN: 4820-01-497-3181
FSC: 4820
CAGE: 000B3 — SURE FLOW EQUIPMENT INC DIV SURE FLOW EQUIPMENRT INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 954 BODY
valve_size8.000 INCHES IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
special_featuresFLANGE SERRATED GASKET FINISH,SPRING MATL:INCONEL
style_designatorSTRAIGHT THRU FLANGED ENDS
bolt_hole_quantity8 ALL ENDS
flange_face_designPLAIN ALL ENDS
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
face_to_face_distance5.000 INCHES IN
valve_operation_methodAUTOMATIC
NSN4820-01-497-3181
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4749-1 ASSY FE-150-BS-VIR-0800 · 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: COPPER ALLOY 954 BODY
•
VALVE OPERATION METHOD: AUTOMATIC
•
MATERIAL DOCUMENT AND CLASSIFICATION: B148 UNS C95400 MIL SPEC 1ST MATERIAL RESPONSE BODY
•
FLOW CONTROL DEVICE: DISK
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.750 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 954 BODY
VALVE OPERATION METHODAUTOMATIC
MATERIAL DOCUMENT AND CLASSIFICATIONB148 UNS C95400 MIL SPEC 1ST MATERIAL RESPONSE BODY
FLOW CONTROL DEVICEDISK
MATERIALRUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM SEAT
FLANGE SHAPEROUND WITH HOLES ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.750 INCHES ALL ENDS IN
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
BOLT HOLE QUANTITY8 ALL ENDS
FACE TO FACE DISTANCE5.000 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
4988799-5Interchangeable
interchangeable cross-reference
interchangeable
4988799Interchangeable
interchangeable cross-reference
interchangeable
47491Interchangeable
interchangeable cross-reference
interchangeable
2382693AInterchangeable
interchangeable cross-reference
interchangeable
4749-1 ITEM 2Interchangeable
interchangeable cross-reference
interchangeable
8402DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4749-1 ASSY FE-150-BS-VIR-0800?
4749-1 ASSY FE-150-BS-VIR-0800 is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace 4749-1 ASSY FE-150-BS-VIR-0800?
There are 7 known substitutes for 4749-1 ASSY FE-150-BS-VIR-0800: 4988799-5, 4988799, 47491 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4749-1 ASSY FE-150-BS-VIR-0800?
4749-1 ASSY FE-150-BS-VIR-0800 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-497-3181. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026