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Technical Data Sheet
PartsTable / COMPONENT / 045-1/8IN
045-1/8IN ✓ 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 045-1/8IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-289-2143, 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
045-1/8IN
NSN: 4820-00-289-2143
FSC: 4820
CAGE: 21368 — FAIRBANKS CO THE (USA)
SPECIFICATIONS
Part Number045-1/8IN
NSN4820-00-289-2143
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 045-1/8IN · 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
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A CLASS AND 1 END AND 1/8 INCH SIZE IN
•
MATERIAL: COPPER ALLOY 697 STEM
•
FEATURES PROVIDED: BONNET PACKINGBONNET PACKING
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-371 ALLOY 697 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS
•
SPECIFICATION/STANDARD DATA: 59646-MSS SP-80 MANUFACTURERS STANDARD
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A CLASS AND 1 END AND 1/8 INCH SIZE IN
MATERIALCOPPER ALLOY 697 STEM
FEATURES PROVIDEDBONNET PACKINGBONNET PACKING
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-371 ALLOY 697 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS
SPECIFICATION/STANDARD DATA59646-MSS SP-80 MANUFACTURERS STANDARD
MATERIALCOPPER ALLOY 836 BODY
THREAD SERIES DESIGNATORNPT ALL ENDS
VALVE OPERATION METHODMANUALMANUAL
BONNET TYPEINSIDE SCREWINSIDE SCREW
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
L18178Interchangeable
interchangeable cross-reference
interchangeable
045Interchangeable
interchangeable cross-reference
interchangeable
234Interchangeable
interchangeable cross-reference
interchangeable
150Interchangeable
interchangeable cross-reference
interchangeable
221Interchangeable
interchangeable cross-reference
interchangeable
43132Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 045-1/8IN?
045-1/8IN is a 045-1/8IN.
What parts can replace 045-1/8IN?
There are 16 known substitutes for 045-1/8IN: L18178, 045, 234 and 13 more. Substitute compatibility should be verified for your specific system.
Is 045-1/8IN still available?
045-1/8IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026