PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40264-JCap,protective,dust and Moisture

Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc · NSN 5340-00-840-7455 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-840-7455 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-840-7455. Primary manufacturer part number: 40264-J.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Design Type: FRICTION
  • Round Cap Outside Surface Condition: RIBBED
  • Inside Diameter Length: 3.938 INCHES NOMINAL IN
  • Material Document and Classification: MIL-G-1086, TYPE 1, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
  • Tube Outside Diameter for Which Designed: 2.219 INCHES NOMINAL IN
  • Overall Diameter: 2.656 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
Applications
  • Applications requiring Rubber Synthetic construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-840-7455, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-840-7455
Primary Part Number40264-J
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMilwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
StatusCANCELLED
Design TypeFRICTION
Round Cap Outside Surface ConditionRIBBED
Inside Diameter Length3.938 INCHES NOMINAL IN
Material Document and ClassificationMIL-G-1086, TYPE 1, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
Tube Outside Diameter for Which Designed2.219 INCHES NOMINAL IN
Overall Diameter2.656 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
No Item Name Available
2990-00-142-0760MPM04-5011 INTERCHANGEABLE
Muffler,exhaust
Donaldson Company, Inc.
5330-01-173-9113 INTERCHANGEABLE
Kit,seal
Cross-Reference Index
Part NumberManufacturer
40264-J PRIMARY Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
SA12103-1 J. Penner Corporation Dba J Penner Corp (USA)
12103-1 Emco Wheaton Inc (USA)
40234J Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
12103-1 Syltone Industries Llc Dba Gardner Denver Inc. Div Emco Wheaton (USA)
SA12103-1 Syltone Industries Llc Dba Gardner Denver Inc. Div Emco Wheaton (USA)
Related Parts
5340-00-843-9834SUCCESSOR
NO ITEM NAME AVAILABLE
2990-00-142-0760INTERCHANGEABLE
MUFFLER,EXHAUST
MPM04-5011
5330-01-173-9113INTERCHANGEABLE
KIT,SEAL

Frequently Asked Questions

What is NSN 5340-00-840-7455?

NSN 5340-00-840-7455 is a Cap,protective,dust and Moisture, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-840-7455?

NSN 5340-00-840-7455 has 6 cross-referenced part numbers: 40264-J (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), SA12103-1 (J. Penner Corporation Dba J Penner Corp), 12103-1 (Emco Wheaton Inc), 40234J (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 12103-1 (Syltone Industries Llc Dba Gardner Denver Inc. Div Emco Wheaton) and 1 more.

What NSN replaces 5340-00-840-7455?

There are 3 known substitutes for 5340-00-840-7455: 5340-00-843-9834, 2990-00-142-0760, 5330-01-173-9113. Verify interchangeability with system specifications before substitution.

What are the specifications of 40264-J?

Key specifications for 40264-J: Design Type: FRICTION; Round Cap Outside Surface Condition: RIBBED; Inside Diameter Length: 3.938 INCHES NOMINAL IN; Material Document and Classification: MIL-G-1086, TYPE 1, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-840-7455 still in active supply?

NSN 5340-00-840-7455 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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