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Technical Data Sheet
PartsTable / COMPONENT / S1091U
S1091U ✓ 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 RESISTOR NETWORK,FIXED,FILM is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_radius: 0.062 INCHES NOMINAL IN, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 0.688 INCHES NOMINAL IN, style_designator: FAUCET. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-139-4361, 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
S1091U
NSN: 4810-00-139-4361
FSC: 4810
CAGE: 77628 — RADIATOR SPECIALTY COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_radius0.062 INCHES NOMINAL IN
thread_class2A SINGLE THREADED PORTION A
thread_length0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter0.688 INCHES NOMINAL IN
style_designatorFAUCET
nominal_thread_size0.562 INCHES SINGLE THREADED PORTION IN
under_flange_height0.250 INCHES NOMINAL IN
body_inside_diameter0.312 INCHES NOMINAL IN
seating_surface_shapeRADIAL
seal_accommodation_typeRECESSED
thread_quantity_per_inch28 SINGLE THREADED PORTION
NSN4810-00-139-4361
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S1091U · 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
•
SEAL ACCOMMODATION TYPE: RECESSED
•
THREAD QUANTITY PER INCH: 28 SINGLE THREADED PORTION
•
UNDER FLANGE HEIGHT: 0.250 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
•
FLANGE SEAT TO DISK END HEIGHT: 0.125 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: RADIAL
•
NOMINAL THREAD SIZE: 0.562 INCHES SINGLE THREADED PORTION IN
TECHNICAL CHARACTERISTICS (FLIS)
SEAL ACCOMMODATION TYPERECESSED
THREAD QUANTITY PER INCH28 SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.250 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.312 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
FLANGE SEAT TO DISK END HEIGHT0.125 INCHES NOMINAL IN
SEATING SURFACE SHAPERADIAL
NOMINAL THREAD SIZE0.562 INCHES SINGLE THREADED PORTION IN
MATERIALCOPPER ALLOY OVERALL
FLANGE DIAMETER0.688 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
7118Interchangeable
interchangeable cross-reference
interchangeable
4H90241-101AInterchangeable
interchangeable cross-reference
interchangeable
SP1Interchangeable
interchangeable cross-reference
interchangeable
SP1-30Interchangeable
interchangeable cross-reference
interchangeable
T#SP1Interchangeable
interchangeable cross-reference
interchangeable
S701Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1091U?
S1091U is a RESISTOR NETWORK,FIXED,FILM.
What parts can replace S1091U?
There are 11 known substitutes for S1091U: 7118, 4H90241-101A, SP1 and 8 more. Substitute compatibility should be verified for your specific system.
Is S1091U still available?
S1091U 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