PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501239Ring,retaining

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5325-00-926-5440 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-926-5440 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-926-5440. Primary manufacturer part number: 501239.
Features
  • Ring,retaining — FSC 5325
  • Material: STEEL COMP 1074
  • Surface Treatment: CADMIUM
  • Material Document and Classification: AMS 5120, COMPOSITION 1074 ASSN STD SINGLE MATERIAL RESPONSE
  • Material Hardness Rating: 66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
  • Usage Design: INTERNAL
  • Major Thickness: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
  • Ring Style: INTERNAL
Applications
  • Applications requiring Steel Comp 1074 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-926-5440, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 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
NSN5325-00-926-5440
Primary Part Number501239
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
MaterialSTEEL COMP 1074
Surface TreatmentCADMIUM
Material Document and ClassificationAMS 5120, COMPOSITION 1074 ASSN STD SINGLE MATERIAL RESPONSE
Material Hardness Rating66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Usage DesignINTERNAL
Major Thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
Ring StyleINTERNAL
Outside Diameter0.555 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-579-8157MS28775-327 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-599-0927 INTERCHANGEABLE
O-Ring
6130-01-389-7243501212 INTERCHANGEABLE
Battery Power Supply
Federal Marketing Co Div of Virginia Impression Products Inc
5306-01-520-878350-121-2 INTERCHANGEABLE
Bolt,internal Wrenching
Bell Textron Inc
6105-01-527-2890505843P INTERCHANGEABLE
Motor,alternating Current
Alliance Laundry Systems Llc
Cross-Reference Index
Part NumberManufacturer
3000-51CB Truarc Co Llc (USA)
501239 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
N5000-51MF Rotor Clip Company, Inc. (USA)
501212 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
501268 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
N5000-51MF Truarc Company Llc Dba Waldes Truarc (USA)
Related Parts
5331-00-579-8157INTERCHANGEABLE
O-RING
MS28775-327
5331-00-599-0927INTERCHANGEABLE
O-RING
6130-01-389-7243INTERCHANGEABLE
BATTERY POWER SUPPLY
501212
5306-01-520-8783INTERCHANGEABLE
BOLT,INTERNAL WRENCHING
50-121-2
6105-01-527-2890INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
505843P

Frequently Asked Questions

What is NSN 5325-00-926-5440?

NSN 5325-00-926-5440 is a Ring,retaining, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-926-5440?

NSN 5325-00-926-5440 has 6 cross-referenced part numbers: 3000-51CB (Truarc Co Llc), 501239 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), N5000-51MF (Rotor Clip Company, Inc.), 501212 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 501268 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 1 more.

What NSN replaces 5325-00-926-5440?

There are 5 known substitutes for 5325-00-926-5440: 5331-00-579-8157, 5331-00-599-0927, 6130-01-389-7243 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501239?

Key specifications for 501239: Material: STEEL COMP 1074; Surface Treatment: CADMIUM; Material Document and Classification: AMS 5120, COMPOSITION 1074 ASSN STD SINGLE MATERIAL RESPONSE; Material Hardness Rating: 66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM. 10 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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