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782137-19 — PISTON,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

782137-19: PISTON,VALVE.

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, inside_diameter: 0.610 INCHES NOMINAL IN, outside_diameter: 0.356 INCHES NOMINAL IN, surface_treatment: ANODIZE, end_item_identification: AIRCRAFT, B-2 BOMBER, valve_design_control_activity: 73030. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-416-7863, 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
782137-19
NSN: 4820-01-416-7863
FSC: 4820 — Valves, Nonpowered
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
inside_diameter0.610 INCHES NOMINAL IN
outside_diameter0.356 INCHES NOMINAL IN
surface_treatmentANODIZE
end_item_identificationAIRCRAFT, B-2 BOMBER
valve_design_control_activity73030
valve_type_for_which_designedPRESSURE REDUCING
material_document_and_classificationAMS 4117 ASSN STD SINGLE MATERIAL RESPONSE
valve_model_number_for_which_designed778695
NSN4820-01-416-7863
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 782137-19 · 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
•
VALVE TYPE FOR WHICH DESIGNED: PRESSURE REDUCING
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 778695
•
OUTSIDE DIAMETER: 0.356 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4117 ASSN STD SINGLE MATERIAL RESPONSE
•
INSIDE DIAMETER: 0.610 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE
•
VALVE DESIGN CONTROL ACTIVITY: 73030
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDPRESSURE REDUCING
VALVE MODEL NUMBER FOR WHICH DESIGNED778695
OUTSIDE DIAMETER0.356 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4117 ASSN STD SINGLE MATERIAL RESPONSE
INSIDE DIAMETER0.610 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
VALVE DESIGN CONTROL ACTIVITY73030
END ITEM IDENTIFICATIONAIRCRAFT, B-2 BOMBER
MATERIALALUMINUM ALLOY
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 782137-19?
782137-19 is a PISTON,VALVE.
What is the NSN for 782137-19?
782137-19 is cataloged in the U.S. Government catalog under NSN 4820-01-416-7863. 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.