PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5100-156Ring,retaining

Lake Shore Systems, Inc. · NSN 5325-01-255-5404 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-255-5404 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-255-5404. Primary manufacturer part number: 5100-156.
Features
  • Ring,retaining — FSC 5325
  • Casehardening Indicator: CASEHARDENED
  • Outside Diameter: 53.3 MILLIMETERS MINIMUM MM
  • Cross-Sectional Shape Style: RECTANGULAR
  • Ring Style: INTERNAL
  • Usage Design: INTERNAL
  • Major Thickness: 1.6 MILLIMETERS NOMINAL MM
  • 6 verified cross-references
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-255-5404, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-255-5404
Primary Part Number5100-156
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerLake Shore Systems, Inc.
StatusACTIVE
Casehardening IndicatorCASEHARDENED
Outside Diameter53.3 MILLIMETERS MINIMUM MM
Cross-Sectional Shape StyleRECTANGULAR
Ring StyleINTERNAL
Usage DesignINTERNAL
Major Thickness1.6 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-00-003-05415100156 INTERCHANGEABLE
Gearshaft,spur
Hamilton Sundstrand Corporation
5325-00-803-7304 INTERCHANGEABLE
Ring,retaining
5325-01-272-9912 INTERCHANGEABLE
Ring,retaining
5325-01-314-2979W2-009 REV O ITEM 44 INTERCHANGEABLE
Ring,retaining
Palfinger Marine Usa, Llc
5305-01-588-2711 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
5100-156 Truarc Company Llc Dba Waldes Truarc (USA)
5100-156 PRIMARY Lake Shore Systems, Inc. (USA)
5100-156 Rotor Clip Company, Inc. (USA)
SH-156ST PD Rotor Clip Company, Inc. (USA)
3127540 Fenwick-Linde (FRA)
3127540 Fenwick (FRA)
Related Parts
3040-00-003-0541INTERCHANGEABLE
GEARSHAFT,SPUR
5100156
5325-00-803-7304INTERCHANGEABLE
RING,RETAINING
5325-01-272-9912INTERCHANGEABLE
RING,RETAINING
5325-01-314-2979INTERCHANGEABLE
RING,RETAINING
W2-009 REV O ITEM 44
5305-01-588-2711INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD

Frequently Asked Questions

What is NSN 5325-01-255-5404?

NSN 5325-01-255-5404 is a Ring,retaining, manufactured by Lake Shore Systems, Inc., classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-255-5404?

NSN 5325-01-255-5404 has 6 cross-referenced part numbers: 5100-156 (Truarc Company Llc Dba Waldes Truarc), 5100-156 (Lake Shore Systems, Inc.), 5100-156 (Rotor Clip Company, Inc.), SH-156ST PD (Rotor Clip Company, Inc.), 3127540 (Fenwick-Linde) and 1 more.

What NSN replaces 5325-01-255-5404?

There are 5 known substitutes for 5325-01-255-5404: 3040-00-003-0541, 5325-00-803-7304, 5325-01-272-9912 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5100-156?

Key specifications for 5100-156: Casehardening Indicator: CASEHARDENED; Outside Diameter: 53.3 MILLIMETERS MINIMUM MM; Cross-Sectional Shape Style: RECTANGULAR; Ring Style: INTERNAL. 6 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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