PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138640Cap,protective,dust and Moisture

Unison Industries, Llc Dba Unison Industries Inc · NSN 5340-01-280-6340 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-280-6340 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-280-6340. Primary manufacturer part number: 138640.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Round Cap Outside Surface Condition: SMOOTH
  • Tube Outside Diameter for Which Designed: 5.250 INCHES NOMINAL IN
  • Inside Diameter Length: 0.750 INCHES NOMINAL IN
  • Material: PLASTIC VINYL
  • Design Type: FRICTION
  • 3 verified cross-references
  • Primary manufacturer: Unison Industries, Llc Dba Unison Industries Inc
Applications
  • Applications requiring Plastic Vinyl construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-280-6340, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Unison Industries, Llc Dba Unison Industries Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-280-6340
Primary Part Number138640
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerUnison Industries, Llc Dba Unison Industries Inc
StatusACTIVE
Round Cap Outside Surface ConditionSMOOTH
Tube Outside Diameter for Which Designed5.250 INCHES NOMINAL IN
Inside Diameter Length0.750 INCHES NOMINAL IN
MaterialPLASTIC VINYL
Design TypeFRICTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 6
3455-00-224-365809310 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5815-00-330-5693SM-B-157211 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-00-560-359352512 INTERCHANGEABLE
Diaphragm,valve,flat
Laundry and Dry Cleaning Equipment Co
5315-00-751-898552512 INTERCHANGEABLE
Pin Brush Holder
Stewart & Stevenson Power Products Llc
5977-00-872-546152-512 INTERCHANGEABLE
Brush Stem
Stewart & Stevenson Power Products Llc
5995-01-460-7379 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Cross-Reference Index
Part NumberManufacturer
138640 Unison Industries Llc (USA)
525-12 Sinclair & Rush, Inc. Dba Sinclair & Rush Inc (USA)
138640 PRIMARY Unison Industries, Llc Dba Unison Industries Inc (USA)
Related Parts
3455-00-224-3658INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
09310
5815-00-330-5693INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SM-B-157211
4820-00-560-3593INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
52512
5315-00-751-8985INTERCHANGEABLE
PIN BRUSH HOLDER
52512
5977-00-872-5461INTERCHANGEABLE
BRUSH STEM
52-512
5995-01-460-7379INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E

Frequently Asked Questions

What is NSN 5340-01-280-6340?

NSN 5340-01-280-6340 is a Cap,protective,dust and Moisture, manufactured by Unison Industries, Llc Dba Unison Industries Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-280-6340?

NSN 5340-01-280-6340 has 3 cross-referenced part numbers: 138640 (Unison Industries Llc), 525-12 (Sinclair & Rush, Inc. Dba Sinclair & Rush Inc), 138640 (Unison Industries, Llc Dba Unison Industries Inc).

What NSN replaces 5340-01-280-6340?

There are 6 known substitutes for 5340-01-280-6340: 3455-00-224-3658, 5815-00-330-5693, 4820-00-560-3593 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138640?

Key specifications for 138640: Round Cap Outside Surface Condition: SMOOTH; Tube Outside Diameter for Which Designed: 5.250 INCHES NOMINAL IN; Inside Diameter Length: 0.750 INCHES NOMINAL IN; Material: PLASTIC VINYL. 6 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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