PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-257Ring,retaining

Motorola Solutions Danmark A/s · NSN 5325-00-981-0181 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-981-0181 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-981-0181. Primary manufacturer part number: 50-257.
Features
  • Ring,retaining — FSC 5325
  • End Style: VERTEX BELOW CENTER
  • Casehardening Indicator: NOT CASEHARDENED
  • Cross-Sectional Shape Style: ROUND
  • Ring Style: STRAIGHT GAP
  • Material: STEEL
  • Outside Diameter: 0.093 INCHES NOMINAL IN
  • Usage Design: EXTERNAL
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-981-0181, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Motorola Solutions Danmark A/s. Government technical data includes 9 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-981-0181
Primary Part Number50-257
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMotorola Solutions Danmark A/s
StatusACTIVE
End StyleVERTEX BELOW CENTER
Casehardening IndicatorNOT CASEHARDENED
Cross-Sectional Shape StyleROUND
Ring StyleSTRAIGHT GAP
MaterialSTEEL
Outside Diameter0.093 INCHES NOMINAL IN
Usage DesignEXTERNAL
Inside Diameter0.081 INCHES NOMINAL IN
Material Diameter0.016 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-146-4823 INTERCHANGEABLE
Transformer,power
3020-00-203-1450SCB69329 INTERCHANGEABLE
Gear,spur
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-00-236-771450257 INTERCHANGEABLE
Switch,thermostatic
Wells Mfg Co
4730-00-595-025111711 INTERCHANGEABLE
Tee,pipe
Brinkley Technology Group Llc Dba Hercules Manufacturing
5330-01-236-05046139024-7 INTERCHANGEABLE
Gasket
Naval Facilities Engineering Command
6660-01-313-644450257 INTERCHANGEABLE
Maintenance Kit,sensor
Lightning Location and Protection Inc
4730-01-432-387650257 INTERCHANGEABLE
Expansion Joint,pipe
Hyspan Precision Products, Inc.
4810-01-556-60435025-7 INTERCHANGEABLE
Valve,solenoid
Gt Development Corp
2530-01-563-849450257BLKCARC INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
Accuride Corporation Dba Accuride Distributing Llc
Cross-Reference Index
Part NumberManufacturer
50-257 PRIMARY Motorola Solutions Danmark A/s (DNK)
50-257 Telcolab Corp (USA)
Related Parts
5950-00-146-4823INTERCHANGEABLE
TRANSFORMER,POWER
3020-00-203-1450INTERCHANGEABLE
GEAR,SPUR
SCB69329
5930-00-236-7714INTERCHANGEABLE
SWITCH,THERMOSTATIC
50257
4730-00-595-0251INTERCHANGEABLE
TEE,PIPE
11711
5330-01-236-0504INTERCHANGEABLE
GASKET
6139024-7
6660-01-313-6444INTERCHANGEABLE
MAINTENANCE KIT,SENSOR
50257
4730-01-432-3876INTERCHANGEABLE
EXPANSION JOINT,PIPE
50257
4810-01-556-6043INTERCHANGEABLE
VALVE,SOLENOID
5025-7
2530-01-563-8494INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
50257BLKCARC

Frequently Asked Questions

What is NSN 5325-00-981-0181?

NSN 5325-00-981-0181 is a Ring,retaining, manufactured by Motorola Solutions Danmark A/s, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-981-0181?

NSN 5325-00-981-0181 has 2 cross-referenced part numbers: 50-257 (Motorola Solutions Danmark A/s), 50-257 (Telcolab Corp).

What NSN replaces 5325-00-981-0181?

There are 9 known substitutes for 5325-00-981-0181: 5950-00-146-4823, 3020-00-203-1450, 5930-00-236-7714 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-257?

Key specifications for 50-257: End Style: VERTEX BELOW CENTER; Casehardening Indicator: NOT CASEHARDENED; Cross-Sectional Shape Style: ROUND; Ring Style: STRAIGHT GAP. 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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