PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11780Cap,protective,dust and Moisture

Rubber Industries, Inc. Dba Rubber Industries · NSN 5340-01-439-5303 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-439-5303 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-439-5303. Primary manufacturer part number: 11780.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Opening Inside Diameter for Which Designed: 0.6030 INCHES NOMINAL IN
  • Material: RUBBER SILICONE
  • Design Type: FRICTION
  • 2 verified cross-references
  • Primary manufacturer: Rubber Industries, Inc. Dba Rubber Industries
Applications
  • Applications requiring Rubber Silicone construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-439-5303, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rubber Industries, Inc. Dba Rubber Industries. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-439-5303
Primary Part Number11780
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerRubber Industries, Inc. Dba Rubber Industries
StatusACTIVE
Opening Inside Diameter for Which Designed0.6030 INCHES NOMINAL IN
MaterialRUBBER SILICONE
Design TypeFRICTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 9
4820-00-036-1541N11780 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
5945-00-222-596211780 INTERCHANGEABLE
Relay,electromagnetic
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
3455-00-246-034811780 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
6520-00-523-2150 INTERCHANGEABLE
Disk,abrasive
3120-00-957-3310 INTERCHANGEABLE
Bearing,washer,thrust
4820-01-155-0209RK11780 INTERCHANGEABLE
Cock,drain
Parker-Hannifin Corporation Dba Racor Division Div Racor Division
5950-01-222-4442984717-4B INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
4820-01-223-0594 INTERCHANGEABLE
Valve Assembly,manifold
7310-01-528-002011780 INTERCHANGEABLE
Stove,multi-Fuel Burner
Mountain Safety Research Inc
Cross-Reference Index
Part NumberManufacturer
A3137827-1 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
11780 PRIMARY Rubber Industries, Inc. Dba Rubber Industries (USA)
Related Parts
4820-00-036-1541INTERCHANGEABLE
DISK,VALVE
N11780
5945-00-222-5962INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
11780
3455-00-246-0348INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11780
6520-00-523-2150INTERCHANGEABLE
DISK,ABRASIVE
3120-00-957-3310INTERCHANGEABLE
BEARING,WASHER,THRUST
4820-01-155-0209INTERCHANGEABLE
COCK,DRAIN
RK11780
5950-01-222-4442INTERCHANGEABLE
TRANSFORMER,POWER
984717-4B
4820-01-223-0594INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
7310-01-528-0020INTERCHANGEABLE
STOVE,MULTI-FUEL BURNER
11780

Frequently Asked Questions

What is NSN 5340-01-439-5303?

NSN 5340-01-439-5303 is a Cap,protective,dust and Moisture, manufactured by Rubber Industries, Inc. Dba Rubber Industries, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-439-5303?

NSN 5340-01-439-5303 has 2 cross-referenced part numbers: A3137827-1 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 11780 (Rubber Industries, Inc. Dba Rubber Industries).

What NSN replaces 5340-01-439-5303?

There are 9 known substitutes for 5340-01-439-5303: 4820-00-036-1541, 5945-00-222-5962, 3455-00-246-0348 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11780?

Key specifications for 11780: Opening Inside Diameter for Which Designed: 0.6030 INCHES NOMINAL IN; Material: RUBBER SILICONE; Design Type: FRICTION. 3 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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