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PartsTable / COMPONENT / 377-40
377-40 ✓ Verified by PartsTable
Lindy · 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,FIXED,WIRE WOUND,INDUCT. Key specifications include guide: NOT INCLUDED, diameter: 0.204 INCHES NOMINAL IN, material: STEEL BAND, unit_type: COAXIAL LINE, flute_type: INTEGRAL, shank_type: MORSE TAPER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-115-2454, 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
377-40
NSN: 4820-00-115-2454
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
guideNOT INCLUDED
diameter0.204 INCHES NOMINAL IN
materialSTEEL BAND
unit_typeCOAXIAL LINE
flute_typeINTEGRAL
shank_typeMORSE TAPER
body_height1.469 INCHES NOMINAL IN
design_typeBIDIRECTIONAL
reamer_typeFLUTED CHUCKING
flute_designSTRAIGHT
flute_length2.000 INCHES NOMINAL IN
thread_class2B SINGLE THREADED PORTION
NSN4820-00-115-2454
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 377-40 · Lindy ⚠ 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
•
THREAD CLASS: 2B SINGLE THREADED PORTION
•
NOMINAL THREAD SIZE: 5.750 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.860 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF SINGLE THREADED PORTION
•
SEAT ANGLE IN DEG: 5.000 NOMINAL
•
MATERIAL: NICKEL ALLOY OVERALL
•
FLANGE SEAT TO DISK END HEIGHT: 0.438 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B SINGLE THREADED PORTION
NOMINAL THREAD SIZE5.750 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.860 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF SINGLE THREADED PORTION
SEAT ANGLE IN DEG5.000 NOMINAL
MATERIALNICKEL ALLOY OVERALL
FLANGE SEAT TO DISK END HEIGHT0.438 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORTHREADED FLANGED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
B94.2-1971 TABLE 5Interchangeable
interchangeable cross-reference
interchangeable
30432Interchangeable
interchangeable cross-reference
interchangeable
50-10998 4506-1/2Interchangeable
interchangeable cross-reference
interchangeable
A3774095Interchangeable
interchangeable cross-reference
interchangeable
N3774095Interchangeable
interchangeable cross-reference
interchangeable
18356NPIECE27Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 377-40?
377-40 is a RESISTOR,FIXED,WIRE WOUND,INDUCT manufactured by Lindy.
What parts can replace 377-40?
There are 12 known substitutes for 377-40: B94.2-1971 TABLE 5, 30432, 50-10998 4506-1/2 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 377-40?
377-40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-115-2454. 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