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877788 — VALVE,CALIBRATED FLOW

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

877788: VALVE,CALIBRATED FLOW.

The VALVE,CALIBRATED FLOW is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY STEM, body_style: STRAIGHT THRU, regulation_type: 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC, flow_control_device: PISTON, SPRING LOADED, manual_control_method: LEVER, first_end_thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-139-0486, 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
877788
NSN: 4820-01-139-0486
FSC: 4820 — Valves, Nonpowered
CAGE: 0KDP7 — KIDDE-FENWAL, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY STEM
body_styleSTRAIGHT THRU
regulation_type1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
flow_control_devicePISTON, SPRING LOADED
manual_control_methodLEVER
first_end_thread_class3B
end_connection_quantity2
media_for_which_designedAIR
first_end_connection_typeTHREADED INTERNAL TUBE
first_end_style_designatorPLAIN
first_end_thread_directionRIGHT-HAND
maximum_inlet_pressure_ratingERR-060
NSN4820-01-139-0486
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 877788 · 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: PISTON, SPRING LOADED
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
•
FIRST END THREAD CLASS: 3B
•
FIRST END STYLE DESIGNATOR: PLAIN
•
END CONNECTION QUANTITY: 2
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPISTON, SPRING LOADED
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLESTRAIGHT THRU
REGULATION TYPE1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
FIRST END THREAD CLASS3B
FIRST END STYLE DESIGNATORPLAIN
END CONNECTION QUANTITY2
MANUAL CONTROL METHODLEVER
FIRST END CONNECTION TYPETHREADED INTERNAL TUBE
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)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 877788?
877788 is a VALVE,CALIBRATED FLOW.
What is the NSN for 877788?
877788 is cataloged in the U.S. Government catalog under NSN 4820-01-139-0486. 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.