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389-1978 — PARTS KIT,PRESSURE REGULATING VA

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

389-1978: PARTS KIT,PRESSURE REGULATING VA.

PARTS KIT,PRESSURE REGULATING VA. Key specifications include document_type: ENGINEERING PARTS LIST, document_source: 13669, component_quantity: 10, document_identification: 389-1978, end_item_identification: SEA KNIGHT H-16,HELICOPTER, component_document_origin: INDUSTRIAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-065-8469, 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
389-1978
NSN: 4820-01-065-8469
FSC: 4820 — Valves, Nonpowered
CAGE: 13669 — TESCOM CORP DBA TESCOM DIV TESCOM (USA)
SPECIFICATIONS
document_typeENGINEERING PARTS LIST
document_source13669
component_quantity10
document_identification389-1978
end_item_identificationSEA KNIGHT H-16,HELICOPTER
component_document_originINDUSTRIAL
NSN4820-01-065-8469
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 389-1978 · 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: 10
•
DOCUMENT TYPE: ENGINEERING PARTS LIST
•
DOCUMENT IDENTIFICATION: 389-1978
•
COMPONENT DOCUMENT ORIGIN: INDUSTRIAL
•
DOCUMENT SOURCE: 13669
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY10
DOCUMENT TYPEENGINEERING PARTS LIST
DOCUMENT IDENTIFICATION389-1978
COMPONENT DOCUMENT ORIGININDUSTRIAL
DOCUMENT SOURCE13669
END ITEM IDENTIFICATIONSEA KNIGHT H-16,HELICOPTER
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
10109272Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 389-1978?
389-1978 is a PARTS KIT,PRESSURE REGULATING VA.
What parts can replace 389-1978?
There is 1 known substitute for 389-1978: 10109272. Substitute compatibility should be verified for your specific system.
What is the NSN for 389-1978?
389-1978 is cataloged in the U.S. Government catalog under NSN 4820-01-065-8469. This indicates validated use in U.S. government and defense supply chains.
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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.