920-221REF 3 — STEM,FLUID VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

920-221REF 3: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, end_item_identification: NORRIS/0 BANNON BUTTERFLY VALVE MODEL NO. 285B, stem_actuating_end_type: THREADED EXTERNALLY, valve_size_for_which_designed: 12.000 INCHES IN, valve_type_for_which_designed: BUTTERFLY, material_document_and_classification: QQ-N-286A FED SPEC SINGLE MATERIAL RESPONSE A.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-355-3381, 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

920-221REF 3

NSN: 4820-01-355-3381
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)

SPECIFICATIONS

material	NICKEL ALLOY
end_item_identification	NORRIS/0 BANNON BUTTERFLY VALVE MODEL NO. 285B
stem_actuating_end_type	THREADED EXTERNALLY
valve_size_for_which_designed	12.000 INCHES IN
valve_type_for_which_designed	BUTTERFLY
material_document_and_classification	QQ-N-286A FED SPEC SINGLE MATERIAL RESPONSE A
valve_model_number_for_which_designed	285B
NSN	4820-01-355-3381

COMPONENT DIAGRAM

KEY FEATURES

•

VALVE TYPE FOR WHICH DESIGNED: BUTTERFLY

•

STEM ACTUATING END TYPE: THREADED EXTERNALLY

•

VALVE MODEL NUMBER FOR WHICH DESIGNED: 285B

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286A FED SPEC SINGLE MATERIAL RESPONSE A

•

VALVE SIZE FOR WHICH DESIGNED: 12.000 INCHES IN

•

MATERIAL: NICKEL ALLOY

TECHNICAL CHARACTERISTICS

VALVE TYPE FOR WHICH DESIGNED	BUTTERFLY
STEM ACTUATING END TYPE	THREADED EXTERNALLY
VALVE MODEL NUMBER FOR WHICH DESIGNED	285B
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-286A FED SPEC SINGLE MATERIAL RESPONSE A
VALVE SIZE FOR WHICH DESIGNED	12.000 INCHES IN
END ITEM IDENTIFICATION	NORRIS/0 BANNON BUTTERFLY VALVE MODEL NO. 285B
MATERIAL	NICKEL ALLOY

SUBSTITUTES & CROSS-REFERENCES 2

51740B638Reference document

Same NSN cross-reference

Reference document — Secondary reference

1039690Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 920-221REF 3?

920-221REF 3 is a STEM,FLUID VALVE.

What parts can replace 920-221REF 3?

There are 2 known substitutes for 920-221REF 3: 51740B638, 1039690. Substitute compatibility should be verified for your specific system.

What is the NSN for 920-221REF 3?

920-221REF 3 is cataloged in the U.S. Government catalog under NSN 4820-01-355-3381. This indicates validated use in U.S. government and defense supply chains.

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920-221REF 3 — STEM,FLUID VALVE

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