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787AS278 — VALVE,PLUG

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

787AS278: VALVE,PLUG.

The VALVE,PLUG is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SEAT, connection_type: THREADED INTERNAL PIPE FIRST END, thread_direction: RIGHT-HAND FIRST END, surface_treatment: ANODIZE, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.125 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-151-0671, 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
787AS278
NSN: 4820-01-151-0671
FSC: 4820 — Valves, Nonpowered
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SEAT
connection_typeTHREADED INTERNAL PIPE FIRST END
thread_directionRIGHT-HAND FIRST END
surface_treatmentANODIZE
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.125 INCHES FIRST END IN
maximum_operating_temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodHYDRAULIC
media_for_which_designedOIL, HYDRAULIC SECOND RESPONSE
thread_series_designatorNPT FIRST END
NSN4820-01-151-0671
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 787AS278 · 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
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.125 INCHES FIRST END IN
•
MAXIMUM OPERATING TEMP: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
SURFACE TREATMENT: ANODIZE
•
MEDIA FOR WHICH DESIGNED: OIL, HYDRAULIC SECOND RESPONSE
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.125 INCHES FIRST END IN
MAXIMUM OPERATING TEMP160.0 FAHRENHEIT SINGLE RESPONSE DEGF
SURFACE TREATMENTANODIZE
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALALUMINUM ALLOY BODY
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
D8421B-1/8-HD2PReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 787AS278?
787AS278 is a VALVE,PLUG.
What parts can replace 787AS278?
There is 1 known substitute for 787AS278: D8421B-1/8-HD2P. Substitute compatibility should be verified for your specific system.
What is the NSN for 787AS278?
787AS278 is cataloged in the U.S. Government catalog under NSN 4820-01-151-0671. This indicates validated use in U.S. government and defense supply chains.
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