PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9M55-1ANonmetallic Special Shaped Secti

Basic Rubber and Plastics Co. · NSN 9390-00-591-4419 · FSC 9390 · No Item Name Available
Verified by PartsTable
NSN 9390-00-591-4419 — this item is cataloged by the U.S. Government under National Stock Number 9390-00-591-4419. Primary manufacturer part number: 9M55-1A.
Features
  • Nonmetallic Special Shaped Secti — FSC 9390
  • Specification/standard Data: 81343-AMS 3220 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Anchor Flange/button Center to Center Distance: 1.469 INCHES NOMINAL IN
  • Inside Radius: 0.297 INCHES NOMINAL IN
  • Environmental Protection: CORROSION RESISTANT AND FLUID RESISTANT AND OIL RESISTANT AND HEAT DRY AND WEATHER RESISTANT
  • Nonmetallic Hardness Rating: 55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
  • Cross-Sectional Shape Style: MOLDING
Applications
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The Nonmetallic Special Shaped Secti, cataloged under National Stock Number 9390-00-591-4419, is classified within Federal Supply Class 9390 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Basic Rubber and Plastics Co.. Government technical data includes 10 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
NSN9390-00-591-4419
Primary Part Number9M55-1A
Item NameNonmetallic Special Shaped Secti
FSC / FSG9390 / 93 — No Item Name Available
ManufacturerBasic Rubber and Plastics Co.
StatusACTIVE
Specification/standard Data81343-AMS 3220 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialRUBBER CHLOROPRENE CLASS CR
Anchor Flange/button Center to Center Distance1.469 INCHES NOMINAL IN
Inside Radius0.297 INCHES NOMINAL IN
Environmental ProtectionCORROSION RESISTANT AND FLUID RESISTANT AND OIL RESISTANT AND HEAT DRY AND WEATHER RESISTANT
Nonmetallic Hardness Rating55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
Cross-Sectional Shape StyleMOLDING
Length72.000 INCHES NOMINAL IN
First Diameter0.187 INCHES NOMINAL IN
Outside Radius0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4720-00-233-0082 INTERCHANGEABLE
Tubing,nonmetallic
4720-00-541-6782 INTERCHANGEABLE
Tubing,nonmetallic
5331-01-155-3407 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
9M55-1A Basic Rubber and Plastics Co. (USA)
AMS 3220 Society of Automotive Engineers Inc (USA)
9M55-1A The Boeing Company Div Defense (USA)
MIL-STD-129 Jeannette Corp (USA)
Related Parts
4720-00-233-0082INTERCHANGEABLE
TUBING,NONMETALLIC
4720-00-541-6782INTERCHANGEABLE
TUBING,NONMETALLIC
5331-01-155-3407INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 9390-00-591-4419?

NSN 9390-00-591-4419 is a Nonmetallic Special Shaped Secti, manufactured by Basic Rubber and Plastics Co., classified under FSC 9390 (No Item Name Available). Status: active.

What are the part numbers for NSN 9390-00-591-4419?

NSN 9390-00-591-4419 has 4 cross-referenced part numbers: 9M55-1A (Basic Rubber and Plastics Co.), AMS 3220 (Society of Automotive Engineers Inc), 9M55-1A (The Boeing Company Div Defense), MIL-STD-129 (Jeannette Corp).

What NSN replaces 9390-00-591-4419?

There are 3 known substitutes for 9390-00-591-4419: 4720-00-233-0082, 4720-00-541-6782, 5331-01-155-3407. Verify interchangeability with system specifications before substitution.

What are the specifications of 9M55-1A?

Key specifications for 9M55-1A: Specification/standard Data: 81343-AMS 3220 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Material: RUBBER CHLOROPRENE CLASS CR; Anchor Flange/button Center to Center Distance: 1.469 INCHES NOMINAL IN; Inside Radius: 0.297 INCHES NOMINAL IN. 12 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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