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Technical Data Sheet
PartsTable / COMPONENT / DB20
DB20 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The TUBE,CALIBRATION,VACUUM is a the manufacturer industrial component. Key specifications include end_item_identification: 4920009888946, general_characteristics_item_description: 7-1/4 IN. O/A LG,1-1/2 IN.

DIA. IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-435-9265, 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
DB20
NSN: 4710-00-435-9265
FSC: 4710
CAGE: 07682 — TELEDYNE INSTRUMENTS, INC. DBA TELEDYNE HASTINGS INSTRUMENTS DIV TELEDYNE HASTINGS INSTRUMENTS (USA)
SPECIFICATIONS
end_item_identification4920009888946
general_characteristics_item_description7-1/4 IN. O/A LG,1-1/2 IN. DIA. IN
NSN4710-00-435-9265
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: DB20 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 7-1/4 IN. O/A LG,1-1/2 IN. DIA. IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTION7-1/4 IN. O/A LG,1-1/2 IN. DIA. IN
END ITEM IDENTIFICATION4920009888946
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
40081420Interchangeable
interchangeable cross-reference
interchangeable
TH163Interchangeable
interchangeable cross-reference
interchangeable
F2242-000793Interchangeable
interchangeable cross-reference
interchangeable
55104Interchangeable
interchangeable cross-reference
interchangeable
98801Interchangeable
interchangeable cross-reference
interchangeable
607151Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DB20?
DB20 is a TUBE,CALIBRATION,VACUUM.
What parts can replace DB20?
There are 19 known substitutes for DB20: 40081420, TH163, F2242-000793 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DB20?
DB20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-435-9265. 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