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PartsTable / COMPONENT / 40273 PIECE 2
40273 PIECE 2 ✓ 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 BELLOWS ASSEMBLY,VALVE is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-114-7143, 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
40273 PIECE 2
NSN: 4820-01-114-7143
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRASS,9 CORRUGATION FOLDS,THD EXTERNAL MTG STEM,0.625-18 UNF RH,STEM END THD EXTERNAL TUBE W/COMPRESSION SLEEVE AND NUT,0.438-24 UNS RH,4.435 IN. OD,5.000 IN. O/A LG IN
NSN4820-01-114-7143
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40273 PIECE 2 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS,9 CORRUGATION FOLDS,THD EXTERNAL MTG STEM,0.625-18 UNF RH,STEM END THD EXTERNAL TUBE W/COMPRESSION SLEEVE AND NUT,0.438-24 UNS RH,4.435 IN. OD,5.000 IN. O/A LG IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS,9 CORRUGATION FOLDS,THD EXTERNAL MTG STEM,0.625-18 UNF RH,STEM END THD EXTERNAL TUBE W/COMPRESSION SLEEVE AND NUT,0.438-24 UNS RH,4.435 IN. OD,5.000 IN. O/A LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
600-2-2Interchangeable
interchangeable cross-reference
interchangeable
2994574-19Interchangeable
interchangeable cross-reference
interchangeable
439A866G08Interchangeable
interchangeable cross-reference
interchangeable
S439A866G08Interchangeable
interchangeable cross-reference
interchangeable
40273Interchangeable
interchangeable cross-reference
interchangeable
12503500Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40273 PIECE 2?
40273 PIECE 2 is a BELLOWS ASSEMBLY,VALVE.
What parts can replace 40273 PIECE 2?
There are 18 known substitutes for 40273 PIECE 2: 600-2-2, 2994574-19, 439A866G08 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40273 PIECE 2?
40273 PIECE 2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-114-7143. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026