PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 21185
21185 ✓ 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

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include fsc_application_data: LENS,SWITCH,ACTUATING, general_characteristics_item_description: SILICONE RUBBER MATERIAL,DOME SHAPE,BLUE COLOR,TRANSPARENT,0.325 IN. OD,0.279 IN.

H,0.235 IN. ID,PRESSURE MOUNTED 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 4720-00-203-3336, 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
21185
NSN: 4720-00-203-3336
FSC: 4720
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
fsc_application_dataLENS,SWITCH,ACTUATING
general_characteristics_item_descriptionSILICONE RUBBER MATERIAL,DOME SHAPE,BLUE COLOR,TRANSPARENT,0.325 IN. OD,0.279 IN. H,0.235 IN. ID,PRESSURE MOUNTED IN
NSN4720-00-203-3336
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 21185 · 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
•
MEASURING METHOD AND LENGTH: 0.813 INCHES MINIMUM OVERALL AND 0.937 INCHES MAXIMUM OVERALL IN
•
OUTSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE DIAMETER: 1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
EXTERIOR COLOR: BLACK
•
FLEXIBILITY: FLEXIBLE
•
MATERIAL: RUBBER SYNTHETIC TUBE
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
MEASURING METHOD AND LENGTH0.813 INCHES MINIMUM OVERALL AND 0.937 INCHES MAXIMUM OVERALL IN
OUTSIDE DIAMETER1.750 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
EXTERIOR COLORBLACK
FLEXIBILITYFLEXIBLE
MATERIALRUBBER SYNTHETIC TUBE
NONMETALLIC HARDNESS RATING50.0 MINIMUM SHORE DUROMETER A AND 70.0 MAXIMUM SHORE DUROMETER A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
146Interchangeable
interchangeable cross-reference
interchangeable
21185Interchangeable
interchangeable cross-reference
interchangeable
30060-1Interchangeable
interchangeable cross-reference
interchangeable
0871370000Interchangeable
interchangeable cross-reference
interchangeable
87137Interchangeable
interchangeable cross-reference
interchangeable
01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 21185?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 21185?
21185 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace 21185?
There are 6 known substitutes for 21185: 146, 21185, 30060-1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21185?
21185 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-203-3336. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 21185

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026