PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20680Ring,wearing

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 4320-01-356-8667 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-356-8667 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-356-8667. Primary manufacturer part number: 20680.
Features
  • Ring,wearing — FSC 4320
  • Body Inside Diameter: 2.000 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Body Outside Diameter: 3.750 INCHES NOMINAL IN
  • Body Style: PLAIN
  • 1 verified cross-reference
  • Primary manufacturer: Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-356-8667, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-356-8667
Primary Part Number20680
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusACTIVE
Body Inside Diameter2.000 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Body Outside Diameter3.750 INCHES NOMINAL IN
Body StylePLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5325-00-137-67409174536-9 INTERCHANGEABLE
Stud,turnlock Fastener
Us Army Aviation and Missile Command
5133-00-189-9277 INTERCHANGEABLE
Drill,twist
3040-00-216-619420680 INTERCHANGEABLE
Shaft,shouldered
Itt Marlow a Unit of Itt Pumps and Compressors Div
6625-00-628-652220680 INTERCHANGEABLE
Indicator,fault Locating
Grimes Aerospace Company
4510-00-922-022911-0300 INTERCHANGEABLE
Faucet,double
Sea-Tech Systems, Inc. Dba Sea Tech Systems
Cross-Reference Index
Part NumberManufacturer
20680 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
5325-00-137-6740INTERCHANGEABLE
STUD,TURNLOCK FASTENER
9174536-9
5133-00-189-9277INTERCHANGEABLE
DRILL,TWIST
3040-00-216-6194INTERCHANGEABLE
SHAFT,SHOULDERED
20680
6625-00-628-6522INTERCHANGEABLE
INDICATOR,FAULT LOCATING
20680
4510-00-922-0229INTERCHANGEABLE
FAUCET,DOUBLE
11-0300

Frequently Asked Questions

What is NSN 4320-01-356-8667?

NSN 4320-01-356-8667 is a Ring,wearing, manufactured by Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-356-8667?

NSN 4320-01-356-8667 has 1 cross-referenced part number: 20680 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 4320-01-356-8667?

There are 5 known substitutes for 4320-01-356-8667: 5325-00-137-6740, 5133-00-189-9277, 3040-00-216-6194 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20680?

Key specifications for 20680: Body Inside Diameter: 2.000 INCHES NOMINAL IN; Material: COPPER ALLOY; End Item Identification: BURKS PUMPS SERIES G9-2 1/2 CENTRIFUGAL PUMP; Body Outside Diameter: 3.750 INCHES NOMINAL IN. 5 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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