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Technical Data Sheet
PartsTable / COMPONENT / G40-4
G40-4 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAPACITOR,VARIABLE,CERAMIC DIELE. Key specifications include material: RUBBER SYNTHETIC OVERALL, overall_width: 2.531 INCHES NOMINAL IN, aperture_width: 2.313 INCHES NOMINAL IN, overall_length: 8.578 INCHES NOMINAL IN, aperture_length: 8.360 INCHES NOMINAL IN, fsc_application_data: RADIO SET,EXCEPT NAVIGATION AND HOME,NONAIRBORNE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-351-4137, 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
G40-4
NSN: 5330-00-351-4137
FSC: 5330
CAGE: 21530 — SPENCER INDUSTRIES INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
overall_width2.531 INCHES NOMINAL IN
aperture_width2.313 INCHES NOMINAL IN
overall_length8.578 INCHES NOMINAL IN
aperture_length8.360 INCHES NOMINAL IN
special_featuresWITH SPRING; FOR INSTALLING HORSESHOE SNAP RINGS AND LOCK RINGS ON AUTOMOTIVE BRAKES, TRANSMISSIONS, DIFFERENTIALS AND PULLEYS
fsc_application_dataRADIO SET,EXCEPT NAVIGATION AND HOME,NONAIRBORNE
inside_corner_radius0.093 INCHES NOMINAL IN
outside_corner_radius0.203 INCHES NOMINAL IN
end_item_identification1710-00-065-6116
pliers_style_designatorSNAP RING, FORMED TIPS
nondefinitive_spec/std_data3 TYPE AND 2 CLASS
NSN5330-00-351-4137
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: G40-4 MFR: OEM ⚠ 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
•
INSIDE CORNER RADIUS: 0.093 INCHES NOMINAL IN
•
APERTURE WIDTH: 2.313 INCHES NOMINAL IN
•
APERTURE LENGTH: 8.360 INCHES NOMINAL IN
•
FSC APPLICATION DATA: RADIO SET,EXCEPT NAVIGATION AND HOME,NONAIRBORNE
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
OUTSIDE CORNER RADIUS: 0.203 INCHES NOMINAL IN
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)
INSIDE CORNER RADIUS0.093 INCHES NOMINAL IN
APERTURE WIDTH2.313 INCHES NOMINAL IN
OVERALL WIDTH2.531 INCHES NOMINAL IN
APERTURE LENGTH8.360 INCHES NOMINAL IN
FSC APPLICATION DATARADIO SET,EXCEPT NAVIGATION AND HOME,NONAIRBORNE
MATERIALRUBBER SYNTHETIC OVERALL
OVERALL LENGTH8.578 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.203 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
407Interchangeable
interchangeable cross-reference
interchangeable
5407Interchangeable
interchangeable cross-reference
interchangeable
70CPInterchangeable
interchangeable cross-reference
interchangeable
G40-4Interchangeable
interchangeable cross-reference
interchangeable
8831196-1Interchangeable
Same NIIN cross-reference
interchangeable
SCB91118Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G40-4?
G40-4 is a CAPACITOR,VARIABLE,CERAMIC DIELE.
What parts can replace G40-4?
There are 6 known substitutes for G40-4: 407, 5407, 70CP and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G40-4?
G40-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-351-4137. 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