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3971.4 — INDICATOR,VALVE POSITION

✓ Government record, cited
Clementoni · GATE VALVE
PRODUCT OVERVIEW

3971.4: INDICATOR,VALVE POSITION.

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It won’t interfere with any of the ports, controls, touchscreen or the camera. It also provides more sec This part is cataloged in the U.S. Government catalog under NSN 4820-01-078-9026, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
3971.4
NSN: 4820-01-078-9026
NIINs: 010789026, 015308441, 016414579
FSC: 4820 — Valves, Nonpowered
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 12.9 OVERALL
head_styleFLAT CHAMFER
head_height16.0 MILLIMETERS MAXIMUM MM
head_diameter24.0 MILLIMETERS MAXIMUM MM
thread_length30.0 MILLIMETERS NOMINAL MM
fastener_length30.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
width_across_flats14.0 MILLIMETERS NOMINAL MM
internal_drive_styleHEXAGON
nominal_thread_diameter16.0 MILLIMETERS MM
thread_series_designatorM
thread_pitch_in_millimeters2.0
NSN4820-01-078-9026
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3971.4 · Clementoni ⚠ 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 1
C2447-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3971.4?
3971.4 is a INDICATOR,VALVE POSITION manufactured by Clementoni.
What parts can replace 3971.4?
There is 1 known substitute for 3971.4: C2447-00. Substitute compatibility should be verified for your specific system.
What is the NSN for 3971.4?
3971.4 is cataloged in the U.S. Government catalog under NSN 4820-01-078-9026. This indicates validated use in U.S. government and defense supply chains.
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