PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31891Ring,retaining

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5325-00-559-4936 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-559-4936 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-559-4936. Primary manufacturer part number: 31891.
Features
  • Ring,retaining — FSC 5325
  • End Style: 90 DEGREE PARALLEL
  • Material: STEEL COMP 631
  • Surface Treatment: PASSIVATE
  • Material Document and Classification: AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE
  • Ring Style: STRAIGHT GAP
  • Usage Design: EXTERNAL
  • Inside Diameter: 0.986 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 631 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-559-4936, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 11 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-559-4936
Primary Part Number31891
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
End Style90 DEGREE PARALLEL
MaterialSTEEL COMP 631
Surface TreatmentPASSIVATE
Material Document and ClassificationAMS 5673 ASSN STD SINGLE MATERIAL RESPONSE
Ring StyleSTRAIGHT GAP
Usage DesignEXTERNAL
Inside Diameter0.986 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
Casehardening IndicatorNOT CASEHARDENED
Outside Diameter1.036 INCHES MINIMUM AND 1.056 INCHES MAXIMUM IN
Material Diameter0.025 INCHES NOMINAL IN
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
2530-00-540-269954B6228 INTERCHANGEABLE
Tie Rod End,steering
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5110-01-367-72431916 INTERCHANGEABLE
Stripper,wire,hand
Greenlee Textron Inc.
4610-01-439-758031891 INTERCHANGEABLE
Knob,pump
Liquid Metronics Inc
6210-01-503-8424 INTERCHANGEABLE
Light,beacon
6210-01-505-6520B6798-1GS INTERCHANGEABLE
Light,beacon
Carlisle & Finch Co
5977-01-505-87463918 INTERCHANGEABLE
Holder,electrical Contact Brush
Carlisle & Finch Co
6515-01-604-1809K832H INTERCHANGEABLE
Suture,nonabsorbable,surgical
Ethicon Us Llc Div Ethicon
Cross-Reference Index
Part NumberManufacturer
31891 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
2530-00-540-2699INTERCHANGEABLE
TIE ROD END,STEERING
54B6228
5110-01-367-7243INTERCHANGEABLE
STRIPPER,WIRE,HAND
1916
4610-01-439-7580INTERCHANGEABLE
KNOB,PUMP
31891
6210-01-503-8424INTERCHANGEABLE
LIGHT,BEACON
6210-01-505-6520INTERCHANGEABLE
LIGHT,BEACON
B6798-1GS
5977-01-505-8746INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
3918
6515-01-604-1809INTERCHANGEABLE
SUTURE,NONABSORBABLE,SURGICAL
K832H

Frequently Asked Questions

What is NSN 5325-00-559-4936?

NSN 5325-00-559-4936 is a Ring,retaining, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-559-4936?

NSN 5325-00-559-4936 has 1 cross-referenced part number: 31891 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5325-00-559-4936?

There are 8 known substitutes for 5325-00-559-4936: 5940-00-143-4771, 2530-00-540-2699, 5110-01-367-7243 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31891?

Key specifications for 31891: End Style: 90 DEGREE PARALLEL; Material: STEEL COMP 631; Surface Treatment: PASSIVATE; Material Document and Classification: AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE. 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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