990C843H01 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

990C843H01: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL BOSS FIRST END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END, style_designator: STRAIGHT THRU W/BAFFLE, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-168-1741, 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

990C843H01

NSN: 4820-00-168-1741
FSC: 4820 — Valves, Nonpowered
CAGE: 18323 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA ELECTRONIC SYSTEMS (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING FLOW CONTROL DEVICE
thread_class	2A FIRST END A
connection_type	THREADED EXTERNAL BOSS FIRST END
connection_style	EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
style_designator	STRAIGHT THRU W/BAFFLE
thread_direction	RIGHT-HAND FIRST END
flow_control_device	DISK
nominal_thread_size	0.750 INCHES FIRST END IN
valve_operation_method	AUTOMATIC
thread_series_designator	UNF FIRST END
NSN	4820-00-168-1741

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: DISK

•

CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END

•

CONNECTION TYPE: THREADED EXTERNAL BOSS FIRST END

•

STYLE DESIGNATOR: STRAIGHT THRU W/BAFFLE

•

THREAD DIRECTION: RIGHT-HAND FIRST END

•

NOMINAL THREAD SIZE: 0.750 INCHES FIRST END IN

•

THREAD CLASS: 2A FIRST END A

•

MATERIAL: STEEL CORROSION RESISTING FLOW CONTROL DEVICE

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	DISK
CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
CONNECTION TYPE	THREADED EXTERNAL BOSS FIRST END
STYLE DESIGNATOR	STRAIGHT THRU W/BAFFLE
THREAD DIRECTION	RIGHT-HAND FIRST END
NOMINAL THREAD SIZE	0.750 INCHES FIRST END IN
THREAD CLASS	2A FIRST END A
MATERIAL	STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIAL	ALUMINUM BODY
THREAD SERIES DESIGNATOR	UNF FIRST END

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 1

990C843801Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 990C843H01?

990C843H01 is a VALVE,SAFETY RELIEF.

What parts can replace 990C843H01?

There is 1 known substitute for 990C843H01: 990C843801. Substitute compatibility should be verified for your specific system.

What is the NSN for 990C843H01?

990C843H01 is cataloged in the U.S. Government catalog under NSN 4820-00-168-1741. This indicates validated use in U.S. government and defense supply chains.

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990C843H01 — VALVE,SAFETY RELIEF

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