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Technical Data Sheet
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227321 ✓ 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 BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include end_item_identification: HELICOPTER MODEL H-2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-092-9301, 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
227321
NSN: 4710-00-092-9301
FSC: 4710
CAGE: 44674 — THE OILGEAR COMPANY DBA JIFFY LUBE 213 DIV OILGEAR (USA)
SPECIFICATIONS
end_item_identificationHELICOPTER MODEL H-2
NSN4710-00-092-9301
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 227321 · 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
•
MATERIAL: STEEL
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN ROUND
•
CONSTRUCTION: SEAMLESS
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
HEAT TREATMENT: ANNEALED
•
DIAMETER: 0.375 INCHES NOMINAL IN
•
WALL THICKNESS: 0.035 INCHES NOMINAL IN
•
FIRST END STYLE: PLAIN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
CROSS-SECTIONAL SHAPE STYLEPLAIN ROUND
CONSTRUCTIONSEAMLESS
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
HEAT TREATMENTANNEALED
DIAMETER0.375 INCHES NOMINAL IN
WALL THICKNESS0.035 INCHES NOMINAL IN
FIRST END STYLEPLAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
277334Interchangeable
interchangeable cross-reference
interchangeable
A-40155Interchangeable
interchangeable cross-reference
interchangeable
25B510AInterchangeable
interchangeable cross-reference
interchangeable
22732-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 227321?
227321 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 227321?
There are 4 known substitutes for 227321: 277334, A-40155, 25B510A and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 227321?
227321 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-092-9301. 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