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11-1286-1 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

11-1286-1: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, nut_height: 9.5 MILLIMETERS NOMINAL MM, thread_series: ISO M, thread_direction: RIGHT-HAND, width_across_flats: 19.0 MILLIMETERS NOMINAL MM, bearing_surface_type: CHAMFERED. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-055-8654, 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
11-1286-1
NSN: 4820-00-055-8654
NIINs: 000558654, 011955845
FSC: 4820 — Valves, Nonpowered
CAGE: 86768 — TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT (USA)
SPECIFICATIONS
nut_styleHEXAGON
nut_height9.5 MILLIMETERS NOMINAL MM
thread_seriesISO M
thread_directionRIGHT-HAND
width_across_flats19.0 MILLIMETERS NOMINAL MM
bearing_surface_typeCHAMFERED
thread_tolerance_class6H INTERNAL
NSN4820-00-055-8654
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 11-1286-1 · 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 7
680-2D2Reference document
Same NSN cross-reference
Reference document — Secondary reference
1159B-2PP-Reference document
Same NSN cross-reference
Reference document — Secondary reference
322AS156-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
680-2D1-500Reference document
Same NSN cross-reference
Reference document — Secondary reference
1159B-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
322AS156Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11-1286-1?
11-1286-1 is a VALVE,SAFETY RELIEF.
What parts can replace 11-1286-1?
There are 7 known substitutes for 11-1286-1: 680-2D2, 1159B-2PP-, 322AS156-1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11-1286-1?
11-1286-1 is cataloged in the U.S. Government catalog under NSN 4820-00-055-8654. This indicates validated use in U.S. government and defense supply chains.
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