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83309-30 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

83309-30: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, overall_length: 13.750 INCHES NOMINAL IN, pressure_rating: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, style_designator: SPLIT WEDGE, stem_actuating_end_type: THREADED EXTERNALLY, largest_outside_diameter: 1.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-419-5826, 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
83309-30
NSN: 4820-00-419-5826
NIINs: 004195826, 004697725, 010740391, 010864133, 011542142, 011548098, 012059447, 012201340, 012380005, 014462215
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL
overall_length13.750 INCHES NOMINAL IN
pressure_rating150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
style_designatorSPLIT WEDGE
stem_actuating_end_typeTHREADED EXTERNALLY
largest_outside_diameter1.188 INCHES NOMINAL IN
media_for_which_designedSTEAM OR GAS
valve_size_for_which_designed3.000 INCHES AND 3.500 INCHES IN
valve_type_for_which_designedGATE
material_document_and_classificationASTM A216,GR WCB ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4820-00-419-5826
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 83309-30 · 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
SUBSTITUTES & CROSS-REFERENCES 10
5-S-1379ALT3STLReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
F14-00648-02TY8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3675-X134 6 INReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5202F 6INReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
15-0F-U 6 INReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-DTL-18110Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 83309-30?
83309-30 is a SEAT,VALVE.
What parts can replace 83309-30?
There are 10 known substitutes for 83309-30: 5-S-1379ALT3STL, F14-00648-02TY8, 3675-X134 6 IN and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 83309-30?
83309-30 is cataloged in the U.S. Government catalog under NSN 4820-00-419-5826. 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.