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Technical Data Sheet
PartsTable / COMPONENT / 1427-4INIBBM
1427-4INIBBM ✓ 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

The VALVE,GATE is a the manufacturer industrial component. Key specifications include material: IRON BODY, stem_type: NONRISING, bonnet_type: INSIDE SCREW, connection_type: THREADED INTERNAL PIPE, features_provided: BONNET PACKING, nominal_thread_size: 4.000 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-275-2425, 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
1427-4INIBBM
NSN: 4820-00-275-2425
FSC: 4820
CAGE: 37239 — LUNKENHEIMER CO (USA)
SPECIFICATIONS
materialIRON BODY
stem_typeNONRISING
bonnet_typeINSIDE SCREW
connection_typeTHREADED INTERNAL PIPE
features_providedBONNET PACKING
nominal_thread_size4.000 INCHES IN
valve_operation_methodMANUAL
bonnet_attachment_methodBOLTED
thread_series_designatorNPT
inlet_relationship_with_outletIDENTICAL
NSN4820-00-275-2425
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1427-4INIBBM · 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
•
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
•
BONNET ATTACHMENT METHOD: BOLTED
•
FEATURES PROVIDED: BONNET PACKING
•
STEM TYPE: NONRISING
•
VALVE OPERATION METHOD: MANUAL
•
CONNECTION TYPE: THREADED INTERNAL PIPE
•
BONNET TYPE: INSIDE SCREW
•
THREAD SERIES DESIGNATOR: NPT
TECHNICAL CHARACTERISTICS (FLIS)
INLET RELATIONSHIP WITH OUTLETIDENTICAL
BONNET ATTACHMENT METHODBOLTED
FEATURES PROVIDEDBONNET PACKING
STEM TYPENONRISING
VALVE OPERATION METHODMANUAL
CONNECTION TYPETHREADED INTERNAL PIPE
BONNET TYPEINSIDE SCREW
THREAD SERIES DESIGNATORNPT
MATERIALIRON BODY
NOMINAL THREAD SIZE4.000 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MSS SP-70Interchangeable
interchangeable cross-reference
interchangeable
0611FLG3Interchangeable
interchangeable cross-reference
interchangeable
WWV58Interchangeable
interchangeable cross-reference
interchangeable
1138Interchangeable
interchangeable cross-reference
interchangeable
326Interchangeable
interchangeable cross-reference
interchangeable
1787 SZ 4 INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1427-4INIBBM?
1427-4INIBBM is a VALVE,GATE.
What parts can replace 1427-4INIBBM?
There are 17 known substitutes for 1427-4INIBBM: MSS SP-70, 0611FLG3, WWV58 and 14 more. Substitute compatibility should be verified for your specific system.
Is 1427-4INIBBM still available?
1427-4INIBBM is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026