21-4 ITEM 3 — DISK,VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

21-4 ITEM 3: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING AND PLASTIC AND RUBBER SYNTHETIC, functional_description: ITEM PROVIDES A QUICK SAFE MEANS OF HOISTING UNINJURED PERSONNEL, end_item_identification: CONVEYOR DRESSER DISH, reference_data_and_literature: LIFESAVINGS SYSTEMS CORP P/N 214 QUICK STROP--PRODUCT SPECIFICATION SHEET, part_name_assigned_by_controlling_agency: GEAR BOX. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-473-4744, 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

21-4 ITEM 3

NSN: 4820-01-473-4744
FSC: 4820 — Valves, Nonpowered
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING AND PLASTIC AND RUBBER SYNTHETIC
special_features	NYLON COVERED CLOSED-CELL FOAM PAD WITH NYLON WEBBING MAIN AND CROTCH STRAPS AND STAINLESS STEEL SNAP HOOK AND LIFTING EYES;APPROVED FOR USE BY THE US COAST GUARD
functional_description	ITEM PROVIDES A QUICK SAFE MEANS OF HOISTING UNINJURED PERSONNEL
end_item_identification	CONVEYOR DRESSER DISH
reference_data_and_literature	LIFESAVINGS SYSTEMS CORP P/N 214 QUICK STROP--PRODUCT SPECIFICATION SHEET
part_name_assigned_by_controlling_agency	GEAR BOX
NSN	4820-01-473-4744

COMPONENT DIAGRAM

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 2

21-4Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

D92270 ITEM 4Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 21-4 ITEM 3?

21-4 ITEM 3 is a DISK,VALVE.

What parts can replace 21-4 ITEM 3?

There are 2 known substitutes for 21-4 ITEM 3: 21-4, D92270 ITEM 4. Substitute compatibility should be verified for your specific system.

What is the NSN for 21-4 ITEM 3?

21-4 ITEM 3 is cataloged in the U.S. Government catalog under NSN 4820-01-473-4744. This indicates validated use in U.S. government and defense supply chains.

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