PartsTable
Technical Data Sheet

438 3/8 — CAPACITOR,FIXED,CERAMIC DIELECTR

✓ Government record, cited
Bestway · ORING SEAL
PRODUCT OVERVIEW

438 3/8: CAPACITOR,FIXED,CERAMIC DIELECTR.

Float and relax in style while you bask in the warm summer sun with the Bestway Sun-Kissed Tanning Lounge and Pool Float! The extra-large, easy-to-inflate Sun-Kissed Tanning Lounge features sturdy I-beam construction, which provides extra buoyancy and support. The lounge includes a cup holder for your beverages and a removable pillow that can be used as a footrest or headrest for maximum comfort, so you can lounge in (or by!) the pool for hours.

When you’re tanning on the lounge in your backyard, and you start feeling the heat, add some water to cool off! When your fun in the sun is over, easily deflate and store the lounge so you can enjoy it for many sunny days ahead. Put on your shades, lay back and relax while you get your tan on in the Bestway Sun-Kissed Tanning Lounge and Pool Float!

This part is cataloged in the U.S. Government catalog under NSN 5330-00-291-7946, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
438 3/8
NSN: 5330-00-291-7946
NIINs: 002917946, 011332702, 012007893, 015478172
FSC: 5330 — Packing and Gasket Materials
CAGE: 76680 — FEDERAL-MOGUL CORP CHASSIS PRODUCTS DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY 836 DISK
stem_typeNONRISINGNONRISING
body_width2.250 INCHES MAXIMUM IN
case_styleSQUARE
seal_width0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
valve_size0.375 INCHES0.375 INCHES IN
body_height3.680 INCHES MAXIMUM IN
body_length2.600 INCHES MAXIMUM IN
bonnet_typeINSIDE SCREWINSIDE SCREW
inclosure_typeFULLY INCLOSED
connection_typeTHREADED INTERNAL PIPETHREADED INTERNAL PIPE
mounting_methodTHREADED HOLE(S) SINGLE GROUP
NSN5330-00-291-7946
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 438 3/8 MFR: Bestway ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEAL WIDTH: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.982 INCHES MINIMUM AND 1.984 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1600 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.188 INCHES NOMINAL IN
•
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
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
SEAL WIDTH0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.982 INCHES MINIMUM AND 1.984 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1600 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.188 INCHES NOMINAL IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
MATERIALSTEEL CASE
SUBSTITUTES & CROSS-REFERENCES 6
3031LReference document
Same NSN cross-reference
Reference document — Secondary reference
500029Reference document
Same NSN cross-reference
Reference document — Secondary reference
RIXS152Reference document
Same NSN cross-reference
Reference document — Secondary reference
5203Reference document
Same NSN cross-reference
Reference document — Secondary reference
84412Reference document
Same NSN cross-reference
Reference document — Secondary reference
525HReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 438 3/8?
438 3/8 is a CAPACITOR,FIXED,CERAMIC DIELECTR manufactured by Bestway.
What parts can replace 438 3/8?
There are 6 known substitutes for 438 3/8: 3031L, 500029, RIXS152 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 438 3/8?
438 3/8 is cataloged in the U.S. Government catalog under NSN 5330-00-291-7946. This indicates validated use in U.S. government and defense supply chains.
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