PartsTable
Technical Data Sheet
Download PDF

20268PC5 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20268PC5: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, thread_class: 2A SINGLE THREADED PORTION A, flange_diameter: 1.375 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, nominal_thread_size: 1.125 INCHES SINGLE THREADED PORTION IN, under_flange_height: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-629-0849, 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
20268PC5
NSN: 4820-00-629-0849
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
thread_class2A SINGLE THREADED PORTION A
flange_diameter1.375 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
nominal_thread_size1.125 INCHES SINGLE THREADED PORTION IN
under_flange_height0.250 INCHES NOMINAL IN
body_inside_diameter0.750 INCHES NOMINAL IN
body_outside_diameter1.047 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_series_designatorUNEF SINGLE THREADED PORTION
flange_seat_to_disk_end_height1.250 INCHES NOMINAL IN
NSN4820-00-629-0849
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20268PC5 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 1.250 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.375 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.047 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.125 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.250 INCHES NOMINAL IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT1.250 INCHES NOMINAL IN
FLANGE DIAMETER1.375 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.047 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.750 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.125 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.250 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
MATERIALSTEEL COMP 303 OVERALL
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
A10430-001-156Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 20268PC5?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 20268PC5?
20268PC5 is a SEAT,VALVE.
What parts can replace 20268PC5?
There is 1 known substitute for 20268PC5: A10430-001-156. Substitute compatibility should be verified for your specific system.
What is the NSN for 20268PC5?
20268PC5 is cataloged in the U.S. Government catalog under NSN 4820-00-629-0849. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 20268PC5

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.