PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS50-137Ring,retaining

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5325-00-252-4735 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-252-4735 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-252-4735. Primary manufacturer part number: NAS50-137.
Features
  • Ring,retaining — FSC 5325
  • Casehardening Indicator: NOT CASEHARDENED
  • Usage Design: INTERNAL
  • Surface Treatment: CADMIUM AND CHROMATE
  • Material: STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
  • Material Document and Classification: FED STD 66, COMP 1070 FED STD 1ST MATERIAL RESPONSE OR FED STD 66, COMP 1072 FED STD 2ND MATERIAL RESPONSE OR FED STD 66, COMP 1074 FED STD 3RD MATERIAL RESPONSE OR FED STD 66, COMP 1075 FED STD 4TH MATERIAL RESPONSE OR FED STD 66, COMP 1078 FED STD 5TH MATERIAL RESPONSE OR FED STD 66, COMP 1080 FED STD 6TH MATERIAL RESPONSE OR FED STD 66, COMP 1084 FED STD 7TH MATERIAL RESPONSE OR FED STD 66, COMP 1085 FED STD 8TH MATERIAL RESPONSE OR FED STD 66, COMP 1086 FED STD 9TH MATERIAL RESPONSE OR FED STD 66, COMP 1090 FED STD 10TH MATERIAL RESPONSE
  • Major Thickness: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
  • Outside Diameter: 1.506 INCHES MINIMUM AND 1.551 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 1070 or Steel Comp 1572 or Steel Comp 1074 or Steel Comp 1075 or Steel Comp 1078 or Steel Comp 1080 or Steel Comp 1084 or Steel Comp 1085 or Steel Comp 1086 or Steel Comp 1090 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-252-4735, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-252-4735
Primary Part NumberNAS50-137
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
Casehardening IndicatorNOT CASEHARDENED
Usage DesignINTERNAL
Surface TreatmentCADMIUM AND CHROMATE
MaterialSTEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
Material Document and ClassificationFED STD 66, COMP 1070 FED STD 1ST MATERIAL RESPONSE OR FED STD 66, COMP 1072 FED STD 2ND MATERIAL RESPONSE OR FED STD 66, COMP 1074 FED STD 3RD MATERIAL RESPONSE OR FED STD 66, COMP 1075 FED STD 4TH MATERIAL RESPONSE OR FED STD 66, COMP 1078 FED STD 5TH MATERIAL RESPONSE OR FED STD 66, COMP 1080 FED STD 6TH MATERIAL RESPONSE OR FED STD 66, COMP 1084 FED STD 7TH MATERIAL RESPONSE OR FED STD 66, COMP 1085 FED STD 8TH MATERIAL RESPONSE OR FED STD 66, COMP 1086 FED STD 9TH MATERIAL RESPONSE OR FED STD 66, COMP 1090 FED STD 10TH MATERIAL RESPONSE
Major Thickness0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Outside Diameter1.506 INCHES MINIMUM AND 1.551 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Material Hardness Rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
Ring StyleINTERNAL
Strength RatingERR-060
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6150-00-019-3929ABC50137 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Glenair, Inc. Dba Glenair Inc
5950-00-146-4813 INTERCHANGEABLE
Reactor
5950-00-229-6281265473PC11 INTERCHANGEABLE
Coil,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5306-00-582-6199NAS501-3-7 INTERCHANGEABLE
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5325-00-619-6507NAS50-137 INTERCHANGEABLE
Ring,retaining
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
1240-00-767-44741656339 INTERCHANGEABLE
Range Finder
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-01-044-2274M45938/1-5C INTERCHANGEABLE
Nut,plain,clinch
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
2925-01-497-452050137 INTERCHANGEABLE
Sleeve,ignition Terminal
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
5340-01-586-7328 INTERCHANGEABLE
Adapter Kit
Cross-Reference Index
Part NumberManufacturer
43254-20 Hydro-Aire Aerospace Corp (USA)
14G316-20 Colt Industries Operating Corp Pratt and Whitney Machine Tool Div
50-137 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
NAS50-137 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5480-1376 Raytheon Company Dba Raytheon (USA)
14G316-20 Westinghouse Electric Corp (USA)
N5000-137MF Truarc Company Llc Dba Waldes Truarc (USA)
S2189-7 Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
Related Parts
6150-00-019-3929INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
ABC50137
5950-00-146-4813INTERCHANGEABLE
REACTOR
5950-00-229-6281INTERCHANGEABLE
COIL,ELECTRICAL
265473PC11
5306-00-582-6199INTERCHANGEABLE
BOLT,MACHINE
NAS501-3-7
5325-00-619-6507INTERCHANGEABLE
RING,RETAINING
NAS50-137
1240-00-767-4474INTERCHANGEABLE
RANGE FINDER
1656339
5310-01-044-2274INTERCHANGEABLE
NUT,PLAIN,CLINCH
M45938/1-5C
2925-01-497-4520INTERCHANGEABLE
SLEEVE,IGNITION TERMINAL
50137
5340-01-586-7328INTERCHANGEABLE
ADAPTER KIT

Frequently Asked Questions

What is NSN 5325-00-252-4735?

NSN 5325-00-252-4735 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 5325-00-252-4735?

NSN 5325-00-252-4735 has 8 cross-referenced part numbers: 43254-20 (Hydro-Aire Aerospace Corp), 14G316-20 (Colt Industries Operating Corp Pratt and Whitney Machine Tool Div), 50-137 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), NAS50-137 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 5480-1376 (Raytheon Company Dba Raytheon) and 3 more.

What NSN replaces 5325-00-252-4735?

There are 9 known substitutes for 5325-00-252-4735: 6150-00-019-3929, 5950-00-146-4813, 5950-00-229-6281 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS50-137?

Key specifications for NAS50-137: Casehardening Indicator: NOT CASEHARDENED; Usage Design: INTERNAL; Surface Treatment: CADMIUM AND CHROMATE; Material: STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-252-4735 still in active supply?

NSN 5325-00-252-4735 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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