255587 PIECE 18 — STEM,FLUID VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

255587 PIECE 18: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL AND COPPER AND ALUMINUM ALLOY, end_item_identification: VALVE B COMBN, valve_size_for_which_designed: 0.500 INCHES IN, valve_type_for_which_designed: BALL, criticality_code_justification: ZZZY, material_document_and_classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-331-6893, 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

255587 PIECE 18

NSN: 4820-01-331-6893
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)

SPECIFICATIONS

material	NICKEL AND COPPER AND ALUMINUM ALLOY
end_item_identification	VALVE B COMBN
valve_size_for_which_designed	0.500 INCHES IN
valve_type_for_which_designed	BALL
criticality_code_justification	ZZZY
material_document_and_classification	QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE
reference_number_differentiating_characteristics	QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN	4820-01-331-6893

COMPONENT DIAGRAM

KEY FEATURES

•

VALVE TYPE FOR WHICH DESIGNED: BALL

•

CRITICALITY CODE JUSTIFICATION: ZZZY

•

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

•

VALVE SIZE FOR WHICH DESIGNED: 0.500 INCHES IN

•

MATERIAL: NICKEL AND COPPER AND ALUMINUM ALLOY

•

REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

TECHNICAL CHARACTERISTICS

VALVE TYPE FOR WHICH DESIGNED	BALL
CRITICALITY CODE JUSTIFICATION	ZZZY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED	0.500 INCHES IN
END ITEM IDENTIFICATION	VALVE B COMBN
MATERIAL	NICKEL AND COPPER AND ALUMINUM ALLOY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

SUBSTITUTES & CROSS-REFERENCES 6

2640-806X5 PIECE 18L1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

255587 PIECE 18L1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

255580 PIECE 9Reference document

Same NSN cross-reference

Reference document — Secondary reference

SS845-2445483 ASSY MWReference document

Same NSN cross-reference

Reference document — Secondary reference

SS845-2445483 ASSY MWL1Reference document

Same NSN cross-reference

Reference document — Secondary reference

255580 PIECE 9L1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 255587 PIECE 18?

255587 PIECE 18 is a STEM,FLUID VALVE.

What parts can replace 255587 PIECE 18?

There are 6 known substitutes for 255587 PIECE 18: 2640-806X5 PIECE 18L1, 255587 PIECE 18L1, 255580 PIECE 9 and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 255587 PIECE 18?

255587 PIECE 18 is cataloged in the U.S. Government catalog under NSN 4820-01-331-6893. This indicates validated use in U.S. government and defense supply chains.

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