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77951-1 — SLIDE,DIRECTIONAL CONTROL LINEAR

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

77951-1: SLIDE,DIRECTIONAL CONTROL LINEAR.

SLIDE,DIRECTIONAL CONTROL LINEAR. Key specifications include overall_width: 2.500 INCHES NOMINAL IN, overall_height: 0.250 INCHES NOMINAL IN, overall_length: 3.250 INCHES NOMINAL IN, basic_shape_style: RECTANGULAR OR SQUARE, frequency_per_channel: 2.438 HERTZ NOMINAL OPERATING CHANNEL, average_life_measurement: NOT RATED. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-154-8080, 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
77951-1
NSN: 4820-01-154-8080
FSC: 4820 — Valves, Nonpowered
CAGE: 09790 — EATON AEROSPACE LLC DBA STERER ENGINEERING DIV VALVE & ACTUATOR (USA)
SPECIFICATIONS
overall_width2.500 INCHES NOMINAL IN
overall_height0.250 INCHES NOMINAL IN
overall_length3.250 INCHES NOMINAL IN
basic_shape_styleRECTANGULAR OR SQUARE
frequency_per_channel2.438 HERTZ NOMINAL OPERATING CHANNEL
average_life_measurementNOT RATED
circuit_construction_typeSOLID STATE
external_dc_operating_voltage_in_volts25.0 NOMINAL SINGLE VOLTAGE
NSN4820-01-154-8080
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 77951-1 · 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
SUBSTITUTES & CROSS-REFERENCES 2
77964 PIECE 17Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
77964Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 77951-1?
77951-1 is a SLIDE,DIRECTIONAL CONTROL LINEAR.
What parts can replace 77951-1?
There are 2 known substitutes for 77951-1: 77964 PIECE 17, 77964. Substitute compatibility should be verified for your specific system.
What is the NSN for 77951-1?
77951-1 is cataloged in the U.S. Government catalog under NSN 4820-01-154-8080. This indicates validated use in U.S. government and defense supply chains.
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