PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E5-45-656Cup,compression

Edgewood Chemical Biological Center Ecbc · NSN 5340-00-163-5527 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-163-5527 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-163-5527. Primary manufacturer part number: E5-45-656.
Features
  • Cup,compression — FSC 5340
  • Recess Major Inside Diameter: 2.250 INCHES NOMINAL IN
  • Feather Edge Angle: 6.3 DEGREES NOMINAL
  • Base Material Thickness: 0.188 INCHES NOMINAL IN
  • Overall Diameter: 2.625 INCHES NOMINAL IN
  • Material: RUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER SYNTHETIC OVERALL
  • 3 verified cross-references
  • Primary manufacturer: Edgewood Chemical Biological Center Ecbc
Applications
  • Applications requiring Rubber Polyisoprene Natural Class Nr or Rubber Synthetic Overall construction
General Description

The Cup,compression, cataloged under National Stock Number 5340-00-163-5527, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Edgewood Chemical Biological Center Ecbc. 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5340-00-163-5527
Primary Part NumberE5-45-656
Item NameCup,compression
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEdgewood Chemical Biological Center Ecbc
StatusCANCELLED
Recess Major Inside Diameter2.250 INCHES NOMINAL IN
Feather Edge Angle6.3 DEGREES NOMINAL
Base Material Thickness0.188 INCHES NOMINAL IN
Overall Diameter2.625 INCHES NOMINAL IN
MaterialRUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER SYNTHETIC OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-01-725-1289 (21278)
HAZMATNo
Verified Substitutes 11
5306-01-725-128921278 SUCCESSOR
Bolt,machine
Industrial Technologies and Services Llc
1660-00-078-822710C-0005-11 INTERCHANGEABLE
Converter,liquid Oxygen
Essex Industries, Inc. Dba Essex Industries
3110-00-100-61820283 INTERCHANGEABLE
Ball,bearing
Harley Davidson Motor Co Inc
5945-00-233-1389SCB42402 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6685-00-239-4007 INTERCHANGEABLE
Thermometer,self-Indicating
1075-00-293-6577 INTERCHANGEABLE
Stop,wedge,mine Sweeping
4820-00-936-4274 INTERCHANGEABLE
Valve,safety Relief
5330-01-096-349921278 INTERCHANGEABLE
Seal,plain Encased
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5331-01-178-1752 INTERCHANGEABLE
O-Ring
4730-01-301-368721278 INTERCHANGEABLE
Repair Kit,pipe,emergency Damage
Indumar Products Inc
Cross-Reference Index
Part NumberManufacturer
E5-45-656 PRIMARY Edgewood Chemical Biological Center Ecbc (USA)
21278 Asset Systems, Inc. Dba Asset Systems Inc (USA)
21278 Fmc Corp (USA)
Related Parts
SUCCESSOR 5306-01-725-1289 Bolt,machine · 21278
1660-00-078-8227INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
10C-0005-11
3110-00-100-6182INTERCHANGEABLE
BALL,BEARING
0283
5945-00-233-1389INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SCB42402
6685-00-239-4007INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
1075-00-293-6577INTERCHANGEABLE
STOP,WEDGE,MINE SWEEPING
4820-00-936-4274INTERCHANGEABLE
VALVE,SAFETY RELIEF
5330-01-096-3499INTERCHANGEABLE
SEAL,PLAIN ENCASED
21278
5331-01-178-1752INTERCHANGEABLE
O-RING
4730-01-301-3687INTERCHANGEABLE
REPAIR KIT,PIPE,EMERGENCY DAMAGE
21278
1005-01-503-0022INTERCHANGEABLE
BORE,ROD
21278

Frequently Asked Questions

What is NSN 5340-00-163-5527?

NSN 5340-00-163-5527 is a Cup,compression, manufactured by Edgewood Chemical Biological Center Ecbc, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-163-5527?

NSN 5340-00-163-5527 has 3 cross-referenced part numbers: E5-45-656 (Edgewood Chemical Biological Center Ecbc), 21278 (Asset Systems, Inc. Dba Asset Systems Inc), 21278 (Fmc Corp).

What NSN replaces 5340-00-163-5527?

There are 11 known substitutes for 5340-00-163-5527: 5306-01-725-1289, 1660-00-078-8227, 3110-00-100-6182 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E5-45-656?

Key specifications for E5-45-656: Recess Major Inside Diameter: 2.250 INCHES NOMINAL IN; Feather Edge Angle: 6.3 DEGREES NOMINAL; Base Material Thickness: 0.188 INCHES NOMINAL IN; Overall Diameter: 2.625 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-163-5527 still in active supply?

NSN 5340-00-163-5527 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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