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1485-55 — VALVE,EXPANSION

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1485-55: VALVE,EXPANSION.

The VALVE,EXPANSION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, first_end_style: CHAMFERED, second_end_style: ROUND, pin_overall_length: 0.875 INCHES NOMINAL IN, pin_overall_diameter: 0.2500 INCHES NOMINAL IN, first_end_taper_angle: 4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-027-2237, 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
1485-55
NSN: 4820-01-027-2237
NIINs: 010272237, 013811730
FSC: 4820 — Valves, Nonpowered
CAGE: 10018 — AVAHO ACQUISITION CORP DBA IMPAC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
first_end_styleCHAMFERED
second_end_styleROUND
pin_overall_length0.875 INCHES NOMINAL IN
pin_overall_diameter0.2500 INCHES NOMINAL IN
first_end_taper_angle4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
first_end_taper_length0.083 INCHES NOMINAL IN
second_end_outer_radius0.031 INCHES NOMINAL IN
second_end_relationship_with_first_endNOT IDENTICAL
NSN4820-01-027-2237
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1485-55 · 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
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
VALVE EQUALIZER LOCATION: EXTERNAL
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
BODY STYLE: STRAIGHT THRU
•
FIRST END STYLE DESIGNATOR: SOCKET
•
BULB LENGTH: 3.500 INCHES NOMINAL IN
•
BULB DIAMETER: 0.500 INCHES NOMINAL IN
•
VALVE EQUALIZER CONNECTION DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
VALVE EQUALIZER LOCATIONEXTERNAL
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
BODY STYLESTRAIGHT THRU
FIRST END STYLE DESIGNATORSOCKET
BULB LENGTH3.500 INCHES NOMINAL IN
BULB DIAMETER0.500 INCHES NOMINAL IN
VALVE EQUALIZER CONNECTION DIAMETER0.250 INCHES NOMINAL IN
MOUNTING METHODWELL BULB
REFRIGERATION CAPACITY IN BTU PER HOUR18.0
SUBSTITUTES & CROSS-REFERENCES 1
TCLE1-1-2FWReference document
Same NSN cross-reference
Reference document — Design control — primary 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 1485-55?
1485-55 is a VALVE,EXPANSION.
What parts can replace 1485-55?
There is 1 known substitute for 1485-55: TCLE1-1-2FW. Substitute compatibility should be verified for your specific system.
What is the NSN for 1485-55?
1485-55 is cataloged in the U.S. Government catalog under NSN 4820-01-027-2237. 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.