PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X440Nonmetallic Channel

Mid-Coast Industries, Inc Div Mid-Atlantic Rubber Company · NSN 9390-00-067-6553 · FSC 9390 · No Item Name Available
Verified by PartsTable
NSN 9390-00-067-6553 — this item is cataloged by the U.S. Government under National Stock Number 9390-00-067-6553. Primary manufacturer part number: X440.
Features
  • Nonmetallic Channel — FSC 9390
  • Nonmetallic Hardness Rating: 45.0 MINIMUM SHORE DUROMETER A AND 55.0 MAXIMUM SHORE DUROMETER A
  • Cross-Sectional Shape Style: OPEN CHANNEL
  • Fillet Radius Where Left Flange Joins Base Flange: 0.023 INCHES NOMINAL IN
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY OVERALL HEIGHT,OVERALL WIDTH,LENGTH,LEFT SIDE FLANGE THICKNESS,RIGHT SIDE FLANGE HEIGHT,RIGHT SIDE FLANGE THICKNESS,LEFT SIDE FLANGE TOP OUTER RADIUS,RIGHT SIDE FLANGE TOP OUTER RADIUS,FILLET RADIUS WHERE LEFT FLANGE JOINS BASE FLANGE,OUTER RADIUS WHERE LEFT FLANGE JOINS BASE FLANGE,BASE FLANGE THICKNESS,OUTER RADIUS WHERE RIGHT FLANGE JOINS BASE FLANGE,FILLET RADIUS WHERE RIGHT FLANGE JOINS BASE FLANGE
  • Left-Side Flange Tip Style: LEFT W/ OUTSIDE RADIUS
  • Right Side Flange Thickness: 0.047 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
Applications
  • Applications requiring Rubber Synthetic construction
General Description

The Nonmetallic Channel, cataloged under National Stock Number 9390-00-067-6553, is classified within Federal Supply Class 9390 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Mid-Coast Industries, Inc Div Mid-Atlantic Rubber Company. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9390-00-067-6553
Primary Part NumberX440
Item NameNonmetallic Channel
FSC / FSG9390 / 93 — No Item Name Available
ManufacturerMid-Coast Industries, Inc Div Mid-Atlantic Rubber Company
StatusACTIVE
Nonmetallic Hardness Rating45.0 MINIMUM SHORE DUROMETER A AND 55.0 MAXIMUM SHORE DUROMETER A
Cross-Sectional Shape StyleOPEN CHANNEL
Fillet Radius Where Left Flange Joins Base Flange0.023 INCHES NOMINAL IN
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY OVERALL HEIGHT,OVERALL WIDTH,LENGTH,LEFT SIDE FLANGE THICKNESS,RIGHT SIDE FLANGE HEIGHT,RIGHT SIDE FLANGE THICKNESS,LEFT SIDE FLANGE TOP OUTER RADIUS,RIGHT SIDE FLANGE TOP OUTER RADIUS,FILLET RADIUS WHERE LEFT FLANGE JOINS BASE FLANGE,OUTER RADIUS WHERE LEFT FLANGE JOINS BASE FLANGE,BASE FLANGE THICKNESS,OUTER RADIUS WHERE RIGHT FLANGE JOINS BASE FLANGE,FILLET RADIUS WHERE RIGHT FLANGE JOINS BASE FLANGE
Left-Side Flange Tip StyleLEFT W/ OUTSIDE RADIUS
Right Side Flange Thickness0.047 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Outer Radius Where Right Flange Joins Base Flange0.070 INCHES NOMINAL IN
Length12.000 INCHES NOMINAL IN
Right Side Flange Top Outer Radius0.070 INCHES NOMINAL IN
Left Side Flange Top Outer Radius0.070 INCHES NOMINAL IN
Environmental ProtectionWARP/TWIST
Outer Radius Where Left Flange Joins Base Flange0.070 INCHES NOMINAL IN
Material Document and ClassificationA12C5A4, GENERAL ELECTRIC CO MFR REF SINGLE MATERIAL RESPONSE
Fillet Radius Where Right Flange Joins Base Flange0.023 INCHES NOMINAL IN
Base Flange Thickness0.047 INCHES NOMINAL IN
Right-Side Flange Tip StyleRIGHT W/ OUTSIDE RADIUS
Right Side Flange Height0.406 INCHES NOMINAL IN
Left Side Flange Thickness0.047 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-144-8519305S INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
3110-00-155-665303991 INTERCHANGEABLE
Bearing,ball,annular
Hyster-Yale Group, Inc. Dba Yale Materials Handling
9390-00-292-6442X440 INTERCHANGEABLE
Nonmetallic Channel
Atlantic India Rubber Co Inc
Cross-Reference Index
Part NumberManufacturer
X440 Mid-Coast Industries, Inc Div Mid-Atlantic Rubber Company (USA)
7505086P6 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
X440 Atlantic India Rubber Co Inc (USA)
7505086P6 General Electric Company (USA)
Related Parts
3110-00-144-8519INTERCHANGEABLE
BEARING,BALL,ANNULAR
305S
3110-00-155-6653INTERCHANGEABLE
BEARING,BALL,ANNULAR
03991
9390-00-292-6442INTERCHANGEABLE
NONMETALLIC CHANNEL
X440

Frequently Asked Questions

What is NSN 9390-00-067-6553?

NSN 9390-00-067-6553 is a Nonmetallic Channel, manufactured by Mid-Coast Industries, Inc Div Mid-Atlantic Rubber Company, classified under FSC 9390 (No Item Name Available). Status: active.

What are the part numbers for NSN 9390-00-067-6553?

NSN 9390-00-067-6553 has 4 cross-referenced part numbers: X440 (Mid-Coast Industries, Inc Div Mid-Atlantic Rubber Company), 7505086P6 (Lockheed Martin Corp Naval Electronics & Surveillance Systems), X440 (Atlantic India Rubber Co Inc), 7505086P6 (General Electric Company).

What NSN replaces 9390-00-067-6553?

There are 3 known substitutes for 9390-00-067-6553: 3110-00-144-8519, 3110-00-155-6653, 9390-00-292-6442. Verify interchangeability with system specifications before substitution.

What are the specifications of X440?

Key specifications for X440: Overall Height: 0.406 INCHES NOMINAL IN; Nonmetallic Hardness Rating: 45.0 MINIMUM SHORE DUROMETER A AND 55.0 MAXIMUM SHORE DUROMETER A; Cross-Sectional Shape Style: OPEN CHANNEL; Fillet Radius Where Left Flange Joins Base Flange: 0.023 INCHES NOMINAL IN. 21 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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