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3A21855 — PARTS KIT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3A21855: PARTS KIT,VALVE.

The PARTS KIT,VALVE is a the manufacturer industrial component. Key specifications include document_type: PARTS LIST, end_item_name: MASTER STEERING GEAR ASSEMBLY, document_source: 2Y614, document_identification: 1-5-73.0, end_item_identification: LINK-BELT TRUCK CRANE MODEL HTC-8640 SERIAL NUMBER F8J3-5716, component_document_origin: INDUSTRIAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-513-4778, 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
3A21855
NSN: 4820-01-513-4778
FSC: 4820 — Valves, Nonpowered
CAGE: 2Y614 — LINK-BELT CRANES, L.P., LLLP (USA)
SPECIFICATIONS
document_typePARTS LIST
end_item_nameMASTER STEERING GEAR ASSEMBLY
document_source2Y614
component_quantity6
document_identification1-5-73.0
end_item_identificationLINK-BELT TRUCK CRANE MODEL HTC-8640 SERIAL NUMBER F8J3-5716
component_document_originINDUSTRIAL
component_document_page_number1
part_name_assigned_by_controlling_agencyKIT, COMPLETE REBUILD SEAL
NSN4820-01-513-4778
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3A21855 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
COMPONENT QUANTITY: 6
•
DOCUMENT TYPE: PARTS LIST
•
COMPONENT DOCUMENT PAGE NUMBER: 1
•
DOCUMENT IDENTIFICATION: 1-5-73.0
•
COMPONENT DOCUMENT ORIGIN: INDUSTRIAL
•
END ITEM NAME: MASTER STEERING GEAR ASSEMBLY
•
DOCUMENT SOURCE: 2Y614
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY6
DOCUMENT TYPEPARTS LIST
COMPONENT DOCUMENT PAGE NUMBER1
DOCUMENT IDENTIFICATION1-5-73.0
COMPONENT DOCUMENT ORIGININDUSTRIAL
END ITEM NAMEMASTER STEERING GEAR ASSEMBLY
DOCUMENT SOURCE2Y614
PART NAME ASSIGNED BY CONTROLLING AGENCYKIT, COMPLETE REBUILD SEAL
END ITEM IDENTIFICATIONLINK-BELT TRUCK CRANE MODEL HTC-8640 SERIAL NUMBER F8J3-5716
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

No substitute or cross-reference records for this part.

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 3A21855?
3A21855 is a PARTS KIT,VALVE.
What is the NSN for 3A21855?
3A21855 is cataloged in the U.S. Government catalog under NSN 4820-01-513-4778. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.