PartsTable
Technical Data Sheet
NM-133-1-NK-191-1 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.975 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 1.065 INCHES NOMINAL IN, special_features: CENTER GUIDE HUB W/3 SPOKES, style_designator: PLAIN THREADED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-083-0257, 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
NM-133-1-NK-191-1
NSN: 4820-01-083-0257
FSC: 4820
CAGE: 93591 — PENTAIR VALVES & CONTROLS US LP DIV FLOW CONTROL US HOLDING CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.975 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height1.065 INCHES NOMINAL IN
special_featuresCENTER GUIDE HUB W/3 SPOKES
style_designatorPLAIN THREADED
seat_angle_in_deg45.000 NOMINAL
nominal_thread_size8.250 INCHES SINGLE THREADED PORTION IN
body_inside_diameter7.125 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_quantity_per_inch12 SINGLE THREADED PORTION
thread_series_designatorUNS SINGLE THREADED PORTION
NSN4820-01-083-0257
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: NM-133-1-NK-191-1 · 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
THREAD CLASS: 2A SINGLE THREADED PORTION A
THREAD SERIES DESIGNATOR: UNS SINGLE THREADED PORTION
STYLE DESIGNATOR: PLAIN THREADED
MATERIAL: STEEL OVERALL
SEATING SURFACE SHAPE: ANGULAR
THREAD QUANTITY PER INCH: 12 SINGLE THREADED PORTION
THREAD LENGTH: 0.975 INCHES NOMINAL SINGLE THREADED PORTION IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
STYLE DESIGNATORPLAIN THREADED
MATERIALSTEEL OVERALL
SEATING SURFACE SHAPEANGULAR
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
THREAD LENGTH0.975 INCHES NOMINAL SINGLE THREADED PORTION IN
OVERALL HEIGHT1.065 INCHES NOMINAL IN
BODY INSIDE DIAMETER7.125 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.000 NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
B45XASInterchangeable
interchangeable cross-reference
interchangeable
100104-5Interchangeable
interchangeable cross-reference
interchangeable
S104-5Interchangeable
interchangeable cross-reference
interchangeable
455AInterchangeable
interchangeable cross-reference
interchangeable
S247Interchangeable
interchangeable cross-reference
interchangeable
S-1045PC15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NM-133-1-NK-191-1?
NM-133-1-NK-191-1 is a SEAT,VALVE.
What parts can replace NM-133-1-NK-191-1?
There are 25 known substitutes for NM-133-1-NK-191-1: B45XAS, 100104-5, S104-5 and 22 more. Substitute compatibility should be verified for your specific system.
Is NM-133-1-NK-191-1 still available?
NM-133-1-NK-191-1 is currently cancelled.
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