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23170N PIECE 16E — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

23170N PIECE 16E: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 0.325 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.500 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 0.325 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-076-7589, 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
23170N PIECE 16E
NSN: 4820-01-076-7589
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
thread_class3A SINGLE THREADED PORTION A
thread_length0.325 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.500 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size0.325 INCHES SINGLE THREADED PORTION IN
under_flange_height0.385 INCHES NOMINAL IN
body_inside_diameter0.750 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_quantity_per_inch16 SINGLE THREADED PORTION
thread_series_designatorUN SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.229 INCHES NOMINAL IN
NSN4820-01-076-7589
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 23170N PIECE 16E · 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: 0.229 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.325 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-B164, UNS N04400 ASSN STD SINGLE MATERIAL RESPONSE SEAT
•
BODY INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.325 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.385 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.229 INCHES NOMINAL IN
FLANGE DIAMETER1.500 INCHES NOMINAL IN
THREAD LENGTH0.325 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B164, UNS N04400 ASSN STD SINGLE MATERIAL RESPONSE SEAT
BODY INSIDE DIAMETER0.750 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.325 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.385 INCHES NOMINAL IN
THREAD CLASS3A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH16 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
59797-00-58Reference 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
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FREQUENTLY ASKED QUESTIONS
What is 23170N PIECE 16E?
23170N PIECE 16E is a SEAT,VALVE.
What parts can replace 23170N PIECE 16E?
There is 1 known substitute for 23170N PIECE 16E: 59797-00-58. Substitute compatibility should be verified for your specific system.
What is the NSN for 23170N PIECE 16E?
23170N PIECE 16E is cataloged in the U.S. Government catalog under NSN 4820-01-076-7589. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.