PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21011-4Ring,retaining

Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution · NSN 5325-00-316-8129 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-316-8129 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-316-8129. Primary manufacturer part number: 21011-4.
Features
  • Ring,retaining — FSC 5325
  • Surface Treatment: PASSIVATE
  • Material: STEEL COMP 631
  • Material Document and Classification: AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE
  • Outside Diameter: 1.140 INCHES NOMINAL IN
  • Inside Diameter: 1.020 INCHES NOMINAL IN
  • Ring Style: STRAIGHT GAP
  • Material Diameter: 0.060 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Comp 631 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-316-8129, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN5325-00-316-8129
Primary Part Number21011-4
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerEaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
StatusACTIVE
Surface TreatmentPASSIVATE
MaterialSTEEL COMP 631
Material Document and ClassificationAMS 5673 ASSN STD SINGLE MATERIAL RESPONSE
Outside Diameter1.140 INCHES NOMINAL IN
Inside Diameter1.020 INCHES NOMINAL IN
Ring StyleSTRAIGHT GAP
Material Diameter0.060 INCHES NOMINAL IN
Casehardening IndicatorNOT CASEHARDENED
Usage DesignEXTERNAL
Cross-Sectional Shape StyleROUND
End Style90 DEGREE PARALLEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5905-00-088-09392100-0077 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Keysight Technologies Inc
5365-00-294-1533210114 INTERCHANGEABLE
Spacer,sleeve
Honeywell International, Inc Div Aerospace-Tucson
5940-01-059-97231256 INTERCHANGEABLE
Terminal,quick Disconnect
Keystone Electronics Corp
5360-01-178-1567 INTERCHANGEABLE
Spring
Cross-Reference Index
Part NumberManufacturer
21011-4 Satair A/s (DNK)
21011-4 PRIMARY Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
5905-00-088-0939INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
2100-0077
5365-00-294-1533INTERCHANGEABLE
SPACER,SLEEVE
210114
5940-01-059-9723INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
1256
5360-01-178-1567INTERCHANGEABLE
SPRING

Frequently Asked Questions

What is NSN 5325-00-316-8129?

NSN 5325-00-316-8129 is a Ring,retaining, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-316-8129?

NSN 5325-00-316-8129 has 2 cross-referenced part numbers: 21011-4 (Satair A/s), 21011-4 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).

What NSN replaces 5325-00-316-8129?

There are 4 known substitutes for 5325-00-316-8129: 5905-00-088-0939, 5365-00-294-1533, 5940-01-059-9723 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21011-4?

Key specifications for 21011-4: Surface Treatment: PASSIVATE; Material: STEEL COMP 631; Material Document and Classification: AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE; Outside Diameter: 1.140 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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