PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R22505Ring Set,piston

Kaydon Ring & Seal Inc Dba Skf Precision Technologies · NSN 4310-00-679-8815 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-679-8815 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-679-8815. Primary manufacturer part number: R22505.
Features
  • Ring Set,piston — FSC 4310
  • Standard Bore Diameter: 1.4375 INCHES IN
  • Piston Accommodation Quantity: 2
  • Ring Set Component Parts: INNER RING,R-22507,16004;1; OUTER RING,R-22506,16004,1
  • 6 verified cross-references
  • Primary manufacturer: Kaydon Ring & Seal Inc Dba Skf Precision Technologies
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring Set,piston, cataloged under National Stock Number 4310-00-679-8815, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Kaydon Ring & Seal Inc Dba Skf Precision Technologies. Government technical data includes 3 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4310-00-679-8815
Primary Part NumberR22505
Item NameRing Set,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerKaydon Ring & Seal Inc Dba Skf Precision Technologies
StatusCANCELLED
Standard Bore Diameter1.4375 INCHES IN
Piston Accommodation Quantity2
Ring Set Component PartsINNER RING,R-22507,16004;1; OUTER RING,R-22506,16004,1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-262-4814FC14297 INTERCHANGEABLE
Washer,flat
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
4820-00-308-985428442 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
2530-00-558-5588FE661 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
4720-00-678-873528442 INTERCHANGEABLE
Hose,nonmetallic
Gates Corporation
3120-01-017-729728442 INTERCHANGEABLE
Bearing,sleeve
Hydro-Aire Aerospace Corp
5998-01-158-526528442 INTERCHANGEABLE
Circuit Card Assembly
Hamilton Sundstrand Corporation Dba Collins Aerospace
5998-01-193-1337028442 INTERCHANGEABLE
Printed Circuit Board
Abd Intl Inc Dba Abdick
8030-01-286-3924 INTERCHANGEABLE
Sealing Compound
5120-01-598-3575 INTERCHANGEABLE
Wrench,open End Box
Cross-Reference Index
Part NumberManufacturer
AP28442 Drs Environmental Systems Inc (USA)
28442 Davey Compressor Co Div of Keco Industries Inc (USA)
AP28442 Davey Compressor Co Div of Keco Industries Inc (USA)
28442 Drs Environmental Systems Inc (USA)
4310PL0637083 Jednolity Indeks Materialowy - Uniform Material Index (POL)
R22505 PRIMARY Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA)
Related Parts
5310-00-262-4814INTERCHANGEABLE
WASHER,FLAT
FC14297
4820-00-308-9854INTERCHANGEABLE
STEM,FLUID VALVE
28442
2530-00-558-5588INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FE661
4720-00-678-8735INTERCHANGEABLE
HOSE,NONMETALLIC
28442
3120-01-017-7297INTERCHANGEABLE
BEARING,SLEEVE
28442
5998-01-158-5265INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
28442
5998-01-193-1337INTERCHANGEABLE
PRINTED CIRCUIT BOARD
028442
8030-01-286-3924INTERCHANGEABLE
SEALING COMPOUND
5120-01-598-3575INTERCHANGEABLE
WRENCH,OPEN END BOX

Frequently Asked Questions

What is NSN 4310-00-679-8815?

NSN 4310-00-679-8815 is a Ring Set,piston, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 4310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4310-00-679-8815?

NSN 4310-00-679-8815 has 6 cross-referenced part numbers: AP28442 (Drs Environmental Systems Inc), 28442 (Davey Compressor Co Div of Keco Industries Inc), AP28442 (Davey Compressor Co Div of Keco Industries Inc), 28442 (Drs Environmental Systems Inc), 4310PL0637083 (Jednolity Indeks Materialowy - Uniform Material Index) and 1 more.

What NSN replaces 4310-00-679-8815?

There are 9 known substitutes for 4310-00-679-8815: 5310-00-262-4814, 4820-00-308-9854, 2530-00-558-5588 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R22505?

Key specifications for R22505: Standard Bore Diameter: 1.4375 INCHES IN; Piston Accommodation Quantity: 2; Special Features: GRUMMAN AIRCRAFT CORP,A-10 AIRCRAFT; Ring Set Component Parts: INNER RING,R-22507,16004;1; OUTER RING,R-22506,16004,1. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4310-00-679-8815 still in active supply?

NSN 4310-00-679-8815 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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