PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KSD4520-1Nonmetallic Special Shaped Secti

Kaman Aerospace Corporation Dba Air Vehicles & Mro Division · NSN 9390-00-531-3110 · FSC 9390 · No Item Name Available
Verified by PartsTable
NSN 9390-00-531-3110 — this item is cataloged by the U.S. Government under National Stock Number 9390-00-531-3110. Primary manufacturer part number: KSD4520-1.
Features
  • Nonmetallic Special Shaped Secti — FSC 9390
  • Inside Radius: 0.148 INCHES NOMINAL IN
  • Outside Radius: 0.188 INCHES NOMINAL IN
  • Nonmetallic Hardness Rating: 55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Cross-Sectional Shape Style: HOLLOW CORE, CUSHION SEAL
  • Minimum Tensile Strength: ERR-060
  • Base Flange Width: 0.563 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The Nonmetallic Special Shaped Secti, cataloged under National Stock Number 9390-00-531-3110, is classified within Federal Supply Class 9390 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Kaman Aerospace Corporation Dba Air Vehicles & Mro Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9390-00-531-3110
Primary Part NumberKSD4520-1
Item NameNonmetallic Special Shaped Secti
FSC / FSG9390 / 93 — No Item Name Available
ManufacturerKaman Aerospace Corporation Dba Air Vehicles & Mro Division
StatusCANCELLED
Inside Radius0.148 INCHES NOMINAL IN
Outside Radius0.188 INCHES NOMINAL IN
Nonmetallic Hardness Rating55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
MaterialRUBBER CHLOROPRENE CLASS CR
Cross-Sectional Shape StyleHOLLOW CORE, CUSHION SEAL
Minimum Tensile StrengthERR-060
Base Flange Width0.563 INCHES NOMINAL IN
Environmental ProtectionPETROLEUM RESISTANT AND LOW TEMPERATURE AND OZONE RESISTANT AND WEATHER RESISTANT
Length96.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-069-829927-30 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corporation Div Amphenol Rf
6135-00-120-1022 INTERCHANGEABLE
Battery,nonrechargeable
2825-00-146-00514971 INTERCHANGEABLE
Shaft Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5310-00-186-92982370 INTERCHANGEABLE
Nut,plain,round
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5910-00-187-2745 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
5930-00-240-416940A53422 INTERCHANGEABLE
Switch,slide
General Dynamics Mission Systems, Inc. Dba Gdms
5935-00-257-9289 INTERCHANGEABLE
Connector,plug,electrical
4730-00-277-4780161256 INTERCHANGEABLE
Fitting,lubrication
Goodrich Corporation
6515-00-319-910040-2921 INTERCHANGEABLE
Clamp,bone and Plate Holding
Sklar Corporation Dba Sklar Instruments
6760-00-454-1152 INTERCHANGEABLE
Lens,camera,general Photographic
Cross-Reference Index
Part NumberManufacturer
AS0497-1 Naval Inventory Control Point (USA)
KSD4520 Kaman Aerospace Corporation Dba Air Vehicles & Mro Division (USA)
KSD4520-1 PRIMARY Kaman Aerospace Corporation Dba Air Vehicles & Mro Division (USA)
4-1186-53 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
2730 Continental Rubber Works (USA)
497-1 Naval Inventory Control Point (USA)
2370 Continental Rubber Works (USA)
Related Parts
5935-00-069-8299INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
27-30
6135-00-120-1022INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
2825-00-146-0051INTERCHANGEABLE
SHAFT ASSEMBLY
4971
5310-00-186-9298INTERCHANGEABLE
NUT,PLAIN,ROUND
2370
5910-00-187-2745INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
5930-00-240-4169INTERCHANGEABLE
SWITCH,SLIDE
40A53422
5935-00-257-9289INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4730-00-277-4780INTERCHANGEABLE
FITTING,LUBRICATION
161256
6515-00-319-9100INTERCHANGEABLE
CLAMP,BONE AND PLATE HOLDING
40-2921
6760-00-454-1152INTERCHANGEABLE
LENS,CAMERA,GENERAL PHOTOGRAPHIC
3030-00-528-3830INTERCHANGEABLE
BELT,V
3030-00-528-4751INTERCHANGEABLE
BELT,V

Frequently Asked Questions

What is NSN 9390-00-531-3110?

NSN 9390-00-531-3110 is a Nonmetallic Special Shaped Secti, manufactured by Kaman Aerospace Corporation Dba Air Vehicles & Mro Division, classified under FSC 9390 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9390-00-531-3110?

NSN 9390-00-531-3110 has 7 cross-referenced part numbers: AS0497-1 (Naval Inventory Control Point), KSD4520 (Kaman Aerospace Corporation Dba Air Vehicles & Mro Division), KSD4520-1 (Kaman Aerospace Corporation Dba Air Vehicles & Mro Division), 4-1186-53 (Lockheed Martin Corporation Div Rotary and Mission Systems), 2730 (Continental Rubber Works) and 2 more.

What NSN replaces 9390-00-531-3110?

There are 12 known substitutes for 9390-00-531-3110: 5935-00-069-8299, 6135-00-120-1022, 2825-00-146-0051 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of KSD4520-1?

Key specifications for KSD4520-1: Inside Radius: 0.148 INCHES NOMINAL IN; Outside Radius: 0.188 INCHES NOMINAL IN; Nonmetallic Hardness Rating: 55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A; Material: RUBBER CHLOROPRENE CLASS CR. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9390-00-531-3110 still in active supply?

NSN 9390-00-531-3110 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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