PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20637Ring,retaining

Kaydon Ring & Seal Inc Dba Skf Precision Technologies · NSN 5325-00-631-5292 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-631-5292 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-631-5292. Primary manufacturer part number: 20637.
Features
  • Ring,retaining — FSC 5325
  • Ring Style: STRAIGHT GAP
  • Casehardening Indicator: NOT CASEHARDENED
  • Cross-Sectional Shape Style: RECTANGULAR
  • Major Thickness: 0.155 INCHES NOMINAL IN
  • Material: STEEL
  • Inside Diameter: 0.831 INCHES NOMINAL IN
  • Outside Diameter: 0.875 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-631-5292, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kaydon Ring & Seal Inc Dba Skf Precision Technologies. Government technical data includes 9 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-631-5292
Primary Part Number20637
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerKaydon Ring & Seal Inc Dba Skf Precision Technologies
StatusACTIVE
Ring StyleSTRAIGHT GAP
Casehardening IndicatorNOT CASEHARDENED
Cross-Sectional Shape StyleRECTANGULAR
Major Thickness0.155 INCHES NOMINAL IN
MaterialSTEEL
Inside Diameter0.831 INCHES NOMINAL IN
Outside Diameter0.875 INCHES NOMINAL IN
End Style90 DEGREE PARALLEL
Usage DesignEXTERNAL OR INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5133-00-266-9247 INTERCHANGEABLE
Drill,twist
5330-00-328-4510 INTERCHANGEABLE
Gasket
5342-00-777-764110-30191-23 INTERCHANGEABLE
Latch Assembly,cowl
The Boeing Company Div Legacy Wichita
1005-00-867-534511644080 INTERCHANGEABLE
Lining,clutch and B
U S Army Tank Automotive Command Amsta-Im-Mm
1660-00-942-856020637 INTERCHANGEABLE
Fitting,hose
Avox Systems Inc Dba Avox Systems Inc
5970-01-010-8903 INTERCHANGEABLE
Insulator,washer
5306-01-099-295120637 INTERCHANGEABLE
Bolt
Midwest Gear & Tool, Inc.
5950-01-269-8240 INTERCHANGEABLE
Transformer,current
5975-01-298-3729206-37 INTERCHANGEABLE
Conduit Assembly,flexible
Dcx-Chol Enterprises, Inc.
4730-01-517-1513C20637 INTERCHANGEABLE
Coupling,hose
Hydrasearch Company, Llc
Cross-Reference Index
Part NumberManufacturer
20637 PRIMARY Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA)
Related Parts
5133-00-266-9247INTERCHANGEABLE
DRILL,TWIST
5330-00-328-4510INTERCHANGEABLE
GASKET
5342-00-777-7641INTERCHANGEABLE
LATCH ASSEMBLY,COWL
10-30191-23
1005-00-867-5345INTERCHANGEABLE
LINING,CLUTCH AND B
11644080
1660-00-942-8560INTERCHANGEABLE
FITTING,HOSE
20637
5970-01-010-8903INTERCHANGEABLE
INSULATOR,WASHER
5306-01-099-2951INTERCHANGEABLE
BOLT
20637
5950-01-269-8240INTERCHANGEABLE
TRANSFORMER,CURRENT
5975-01-298-3729INTERCHANGEABLE
CONDUIT ASSEMBLY,FLEXIBLE
206-37
4730-01-517-1513INTERCHANGEABLE
COUPLING,HOSE
C20637

Frequently Asked Questions

What is NSN 5325-00-631-5292?

NSN 5325-00-631-5292 is a Ring,retaining, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-631-5292?

NSN 5325-00-631-5292 has 1 cross-referenced part number: 20637 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).

What NSN replaces 5325-00-631-5292?

There are 10 known substitutes for 5325-00-631-5292: 5133-00-266-9247, 5330-00-328-4510, 5342-00-777-7641 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20637?

Key specifications for 20637: Ring Style: STRAIGHT GAP; Casehardening Indicator: NOT CASEHARDENED; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 0.155 INCHES NOMINAL IN. 9 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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