PartsTable
Technical Data Sheet
27978 ✓ Verified by PartsTable
· GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The TELETYPEWRITER SUBASSEMBLY is a the manufacturer industrial component. Key specifications include special_features: NHA IS HYDRAULIC CONTROL, end_item_identification: 3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80, cross-sectional_shape_style: PLAIN ROUND, part_name_assigned_by_controlling_agency: LOWER SUCTION TUBE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-274-5107, 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
27978
NSN: 4820-00-274-5107
FSC: 4820
CAGE: 53762 — SEAGRAVE CORP THE (USA)
SPECIFICATIONS
special_featuresNHA IS HYDRAULIC CONTROL
end_item_identification3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80
cross-sectional_shape_stylePLAIN ROUND
part_name_assigned_by_controlling_agencyLOWER SUCTION TUBE
NSN4820-00-274-5107
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 27978 · 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
THREAD DIRECTION: RIGHT-HAND FIRST END
MOUNTING POSITION: HORIZONTAL OR VERTICAL
THREAD QUANTITY PER INCH: 20 FIRST END
THREAD SERIES DESIGNATOR: UNF FIRST END
SEAT ANGLE: 45.0 DEGREES FIRST END
MATERIAL: COPPER ALLOY OVERALL
FLOW CONTROL DEVICE: BALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND FIRST END
MOUNTING POSITIONHORIZONTAL OR VERTICAL
THREAD QUANTITY PER INCH20 FIRST END
THREAD QUANTITY PER INCH27 SECOND END
THREAD SERIES DESIGNATORUNF FIRST END
SEAT ANGLE45.0 DEGREES FIRST END
MATERIALCOPPER ALLOY OVERALL
FLOW CONTROL DEVICEBALL
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
B43Interchangeable
interchangeable cross-reference
interchangeable
43F1-4X1-8Interchangeable
interchangeable cross-reference
interchangeable
13206E7470Interchangeable
interchangeable cross-reference
interchangeable
12993Interchangeable
interchangeable cross-reference
interchangeable
MILT13513TYPEIInterchangeable
interchangeable cross-reference
interchangeable
YBV4C148Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 27978?
27978 is a TELETYPEWRITER SUBASSEMBLY.
What parts can replace 27978?
There are 28 known substitutes for 27978: B43, 43F1-4X1-8, 13206E7470 and 25 more. Substitute compatibility should be verified for your specific system.
Is 27978 still available?
27978 is currently cancelled.
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