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GV178-212-1 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

GV178-212-1: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 2.156 INCHES NOMINAL IN, special_features: 1.000 IN. LG PARTIALLY FLATTED FLANGE IN, style_designator: THREADED FLANGED.

This part is cataloged in the U.S. Government catalog under NSN 4810-00-582-4050, 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
GV178-212-1
NSN: 4810-00-582-4050
FSC: 4810 — Valves, Powered
CAGE: 04845 — AUTOMATIC SWITCH COMPANY DBA ASCO (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter2.156 INCHES NOMINAL IN
special_features1.000 IN. LG PARTIALLY FLATTED FLANGE IN
style_designatorTHREADED FLANGED
nominal_thread_size1.875 INCHES SINGLE THREADED PORTION IN
under_flange_height0.500 INCHES NOMINAL IN
body_inside_diameter1.562 INCHES NOMINAL IN
seating_surface_shapeFLAT
end_item_identificationVALVE MODEL AV182-430-2
thread_quantity_per_inch18 SINGLE THREADED PORTION
NSN4810-00-582-4050
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: GV178-212-1 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 1.000 INCHES NOMINAL IN
•
FLANGE DIAMETER: 2.156 INCHES NOMINAL IN
•
THREAD LENGTH: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 1.562 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.875 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT1.000 INCHES NOMINAL IN
FLANGE DIAMETER2.156 INCHES NOMINAL IN
THREAD LENGTH0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER1.562 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.875 INCHES SINGLE THREADED PORTION IN
SPECIAL FEATURES1.000 IN. LG PARTIALLY FLATTED FLANGE IN
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
END ITEM IDENTIFICATIONVALVE MODEL AV182-430-2
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GV178-212-1?
GV178-212-1 is a SEAT,VALVE.
What is the NSN for GV178-212-1?
GV178-212-1 is cataloged in the U.S. Government catalog under NSN 4810-00-582-4050. 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.