PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

687286Ring,wearing

Hamilton Sundstrand Corporation · NSN 4320-00-783-4307 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-783-4307 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-783-4307. Primary manufacturer part number: 687286.
Features
  • Ring,wearing — FSC 4320
  • Body Style: PLAIN W/INTERNAL FLANGE
  • Chamfer Length: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM OUTSIDE RIGHT CORNER IN
  • Body Inside Diameter: 1.112 INCHES NOMINAL IN
  • Internal Flange Inside Diameter: 0.875 INCHES NOMINAL IN
  • Body Outside Diameter: 1.219 INCHES NOMINAL IN
  • Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-783-4307, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hamilton Sundstrand Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-783-4307
Primary Part Number687286
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusACTIVE
Body StylePLAIN W/INTERNAL FLANGE
Chamfer Length0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM OUTSIDE RIGHT CORNER IN
Body Inside Diameter1.112 INCHES NOMINAL IN
Internal Flange Inside Diameter0.875 INCHES NOMINAL IN
Body Outside Diameter1.219 INCHES NOMINAL IN
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Internal Flange Width0.060 INCHES NOMINAL IN
Chamfer Angle45.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3040-00-344-9655687686 INTERCHANGEABLE
Connecting Link,rigid
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-00-348-896149212 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5998-00-991-9988 INTERCHANGEABLE
Circuit Card Assembly
6750-01-427-6064 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
687286 PRIMARY Hamilton Sundstrand Corporation (USA)
687686 Hamilton Sundstrand Corporation (USA)
Related Parts
3040-00-344-9655INTERCHANGEABLE
CONNECTING LINK,RIGID
687686
5330-00-348-8961INTERCHANGEABLE
SEAL,PLAIN ENCASED
49212
5998-00-991-9988INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6750-01-427-6064INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 4320-00-783-4307?

NSN 4320-00-783-4307 is a Ring,wearing, manufactured by Hamilton Sundstrand Corporation, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-783-4307?

NSN 4320-00-783-4307 has 2 cross-referenced part numbers: 687286 (Hamilton Sundstrand Corporation), 687686 (Hamilton Sundstrand Corporation).

What NSN replaces 4320-00-783-4307?

There are 4 known substitutes for 4320-00-783-4307: 3040-00-344-9655, 5330-00-348-8961, 5998-00-991-9988 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 687286?

Key specifications for 687286: Body Style: PLAIN W/INTERNAL FLANGE; Chamfer Length: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM OUTSIDE RIGHT CORNER IN; Body Inside Diameter: 1.112 INCHES NOMINAL IN; Internal Flange Inside Diameter: 0.875 INCHES NOMINAL IN. 11 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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