1159B-2 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

1159B-2: 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

1159B-2

NSN: 4820-00-055-8654
FSC: 4820 — Valves, Nonpowered
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)

SPECIFICATIONS

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
thread_tolerance_class	6H INTERNAL
NSN	4820-00-055-8654

COMPONENT DIAGRAM

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

11-1286-1Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

680-2D1-500Reference 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 1159B-2?

1159B-2 is a VALVE,SAFETY RELIEF.

What parts can replace 1159B-2?

There are 7 known substitutes for 1159B-2: 680-2D2, 1159B-2PP-, 322AS156-1 and 4 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 1159B-2?

1159B-2 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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1159B-2 — VALVE,SAFETY RELIEF

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