PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS51-50Ring,retaining

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5325-00-598-0923 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-598-0923 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-598-0923. Primary manufacturer part number: NAS51-50.
Features
  • Ring,retaining — FSC 5325
  • Usage Design: EXTERNAL
  • Material: STEEL COMP 1074
  • Material Document and Classification: AMS 5120 ASSN STD SINGLE MATERIAL RESPONSE
  • Ring Style: EXTERNAL
  • Casehardening Indicator: NOT CASEHARDENED
  • Cross-Sectional Shape Style: ROUNDED CORNERS
  • Inside Diameter: 0.456 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 1074 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-598-0923, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-598-0923
Primary Part NumberNAS51-50
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Usage DesignEXTERNAL
MaterialSTEEL COMP 1074
Material Document and ClassificationAMS 5120 ASSN STD SINGLE MATERIAL RESPONSE
Ring StyleEXTERNAL
Casehardening IndicatorNOT CASEHARDENED
Cross-Sectional Shape StyleROUNDED CORNERS
Inside Diameter0.456 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
Major Thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
Material Hardness Rating48.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5905-00-126-6696 INTERCHANGEABLE
Resistor,fixed,composition
8115-00-139-0689 INTERCHANGEABLE
Box,shipping
5325-00-252-4725 INTERCHANGEABLE
Ring,retaining
5325-00-803-7301 INTERCHANGEABLE
Ring,retaining
5999-01-198-7066 INTERCHANGEABLE
Mounting Pad,electrical-Electron
8115-01-307-2951 INTERCHANGEABLE
Box,shipping
6515-01-494-02715100-50 INTERCHANGEABLE
Console,integral Irrigation Pump
Buffalo Supply Inc.
Cross-Reference Index
Part NumberManufacturer
5100-50 General Motors Corp Electro-Motive Div (USA)
STD1667 Satair A/s (DNK)
5325PL1735759 Jednolity Indeks Materialowy - Uniform Material Index (POL)
NAS51-50 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5100-50 General Motors Llc Dba General Motors Llc (USA)
5100-50 General Motors Corp (USA)
STD1667 PRIMARY Textron Lycoming Inc Williamsport Plant (USA)
Related Parts
5905-00-126-6696INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
8115-00-139-0689INTERCHANGEABLE
BOX,SHIPPING
5325-00-252-4725INTERCHANGEABLE
RING,RETAINING
5325-00-803-7301INTERCHANGEABLE
RING,RETAINING
5999-01-198-7066INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
8115-01-307-2951INTERCHANGEABLE
BOX,SHIPPING
6515-01-494-0271INTERCHANGEABLE
CONSOLE,INTEGRAL IRRIGATION PUMP
5100-50

Frequently Asked Questions

What is NSN 5325-00-598-0923?

NSN 5325-00-598-0923 is a Ring,retaining, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-598-0923?

NSN 5325-00-598-0923 has 7 cross-referenced part numbers: 5100-50 (General Motors Corp Electro-Motive Div), STD1667 (Satair A/s), 5325PL1735759 (Jednolity Indeks Materialowy - Uniform Material Index), NAS51-50 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 5100-50 (General Motors Llc Dba General Motors Llc) and 2 more.

What NSN replaces 5325-00-598-0923?

There are 7 known substitutes for 5325-00-598-0923: 5905-00-126-6696, 8115-00-139-0689, 5325-00-252-4725 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS51-50?

Key specifications for NAS51-50: Usage Design: EXTERNAL; Material: STEEL COMP 1074; Material Document and Classification: AMS 5120 ASSN STD SINGLE MATERIAL RESPONSE; Ring Style: EXTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-598-0923 still in active supply?

NSN 5325-00-598-0923 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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