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779K-1 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

779K-1: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: COPPER ALLOY STEM, body_style: STRAIGHT THRU, temp_rating: 200.0 FAHRENHEIT NOMINAL DEGF, regulation_type: MANUAL SINGLE STAGE, valve_stem_design: SINGLE SEAT. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-036-2853, 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
779K-1
NSN: 4820-00-036-2853
FSC: 4820 — Valves, Nonpowered
CAGE: 22508 — FISHER CONTROLS CO INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialCOPPER ALLOY STEM
body_styleSTRAIGHT THRU
temp_rating200.0 FAHRENHEIT NOMINAL DEGF
regulation_typeMANUAL SINGLE STAGE
valve_stem_designSINGLE SEAT
flow_control_deviceBELLOWS
valve_loading_methodSPRING
end_connection_quantity2
remote_actuation_methodBELLOWS
renewable_seat_ring_typeBOLTED
first_end_style_designatorPLAIN
NSN4820-00-036-2853
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 779K-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
•
FLOW CONTROL DEVICE: BELLOWS
•
VALVE STEM DESIGN: SINGLE SEAT
•
RENEWABLE SEAT RING TYPE: BOLTED
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
REMOTE ACTUATION METHOD: BELLOWS
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: MANUAL SINGLE STAGE
•
FIRST END STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEBELLOWS
VALVE STEM DESIGNSINGLE SEAT
RENEWABLE SEAT RING TYPEBOLTED
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
REMOTE ACTUATION METHODBELLOWS
BODY STYLESTRAIGHT THRU
REGULATION TYPEMANUAL SINGLE STAGE
FIRST END STYLE DESIGNATORPLAIN
TEMP RATING200.0 FAHRENHEIT NOMINAL DEGF
END CONNECTION QUANTITY2
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
X31915PC30Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 779K-1?
779K-1 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 779K-1?
There is 1 known substitute for 779K-1: X31915PC30. Substitute compatibility should be verified for your specific system.
What is the NSN for 779K-1?
779K-1 is cataloged in the U.S. Government catalog under NSN 4820-00-036-2853. 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.