PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Z63PC20Ring,retaining

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5325-00-282-5311 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-282-5311 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-282-5311. Primary manufacturer part number: 12Z63PC20.
Features
  • Ring,retaining — FSC 5325
  • Outside Diameter: 1.341 INCHES MINIMUM AND 1.366 INCHES MAXIMUM IN
  • Material Document and Classification: FED STD 66, COMP 1066 FED STD 1ST MATERIAL RESPONSE OR FED STD 66, COMP 1069 FED STD 2ND MATERIAL RESPONSE OR FED STD 66, COMP 1070 FED STD 3RD MATERIAL RESPONSE OR FED STD 66, COMP 1072 FED STD 4TH MATERIAL RESPONSE OR FED STD 66, COMP 1074 FED STD 5TH MATERIAL RESPONSE OR FED STD 66, COMP 1075 FED STD 6TH MATERIAL RESPONSE OR FED STD 66, COMP 1078 FED STD 7TH MATERIAL RESPONSE OR FED STD 66, COMP 1080 FED STD 8TH MATERIAL RESPONSE OR FED STD 66, COMP 1084 FED STD 9TH MATERIAL RESPONSE OR FED STD 66, COMP 1085 FED STD 10TH MATERIAL RESPONSE OR FED STD 66, COMP 1086 FED STD 11TH MATERIAL RESPONSE OR FED STD 66, COMP 1090 FED STD 12TH MATERIAL RESPONSE
  • Material: STEEL COMP 1566 OR STEEL COMP 1069 OR 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
  • Ring Style: INTERNAL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
  • Casehardening Indicator: NOT CASEHARDENED
Applications
  • Applications requiring Steel Comp 1566 or Steel Comp 1069 or 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 5325-00-282-5311, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-282-5311
Primary Part Number12Z63PC20
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Outside Diameter1.341 INCHES MINIMUM AND 1.366 INCHES MAXIMUM IN
Material Document and ClassificationFED STD 66, COMP 1066 FED STD 1ST MATERIAL RESPONSE OR FED STD 66, COMP 1069 FED STD 2ND MATERIAL RESPONSE OR FED STD 66, COMP 1070 FED STD 3RD MATERIAL RESPONSE OR FED STD 66, COMP 1072 FED STD 4TH MATERIAL RESPONSE OR FED STD 66, COMP 1074 FED STD 5TH MATERIAL RESPONSE OR FED STD 66, COMP 1075 FED STD 6TH MATERIAL RESPONSE OR FED STD 66, COMP 1078 FED STD 7TH MATERIAL RESPONSE OR FED STD 66, COMP 1080 FED STD 8TH MATERIAL RESPONSE OR FED STD 66, COMP 1084 FED STD 9TH MATERIAL RESPONSE OR FED STD 66, COMP 1085 FED STD 10TH MATERIAL RESPONSE OR FED STD 66, COMP 1086 FED STD 11TH MATERIAL RESPONSE OR FED STD 66, COMP 1090 FED STD 12TH MATERIAL RESPONSE
MaterialSTEEL COMP 1566 OR STEEL COMP 1069 OR 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
Ring StyleINTERNAL
Cross-Sectional Shape StyleRECTANGULAR
Material Hardness Rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
Casehardening IndicatorNOT CASEHARDENED
Major Thickness0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Usage DesignINTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6640-00-494-397226510-125 INTERCHANGEABLE
Flask,erlenmeyer
Gerresheimer Glass Inc Div Gerresheimer Glass
5330-00-803-8947A21145 INTERCHANGEABLE
Retainer,packing
Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument
5325-00-804-2786 INTERCHANGEABLE
Ring,retaining
6640-01-352-05185000-125 INTERCHANGEABLE
Flask,erlenmeyer
Corning Glass Works
Cross-Reference Index
Part NumberManufacturer
12Z63PC20 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
NC300-26 Dresser Industries Inc Leroi Div (USA)
N5000-125 Rotor Clip Company, Inc. (USA)
A21145 Cnh Industrial America Llc Dba Cnh America (USA)
MS16625-125 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
N5000-125 Truarc Company Llc Dba Waldes Truarc (USA)
355-973X1 Terex Compact Equipmment (GBR)
NC206PC26 Dresser Industries Inc Leroi Div (USA)
N5000-125 Cirteq Ltd (GBR)
NC200PC26 Dresser Industries Inc Leroi Div (USA)
5000-125 Itw Limited T/a Avery Weigh-Tronix (GBR)
Related Parts
6640-00-494-3972INTERCHANGEABLE
FLASK,ERLENMEYER
26510-125
5330-00-803-8947INTERCHANGEABLE
RETAINER,PACKING
A21145
5325-00-804-2786INTERCHANGEABLE
RING,RETAINING
6640-01-352-0518INTERCHANGEABLE
FLASK,ERLENMEYER
5000-125

Frequently Asked Questions

What is NSN 5325-00-282-5311?

NSN 5325-00-282-5311 is a Ring,retaining, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-282-5311?

NSN 5325-00-282-5311 has 11 cross-referenced part numbers: 12Z63PC20 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), NC300-26 (Dresser Industries Inc Leroi Div), N5000-125 (Rotor Clip Company, Inc.), A21145 (Cnh Industrial America Llc Dba Cnh America), MS16625-125 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 6 more.

What NSN replaces 5325-00-282-5311?

There are 4 known substitutes for 5325-00-282-5311: 6640-00-494-3972, 5330-00-803-8947, 5325-00-804-2786 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12Z63PC20?

Key specifications for 12Z63PC20: Outside Diameter: 1.341 INCHES MINIMUM AND 1.366 INCHES MAXIMUM IN; Material Document and Classification: FED STD 66, COMP 1066 FED STD 1ST MATERIAL RESPONSE OR FED STD 66, COMP 1069 FED STD 2ND MATERIAL RESPONSE OR FED STD 66, COMP 1070 FED STD 3RD MATERIAL RESPONSE OR FED STD 66, COMP 1072 FED STD 4TH MATERIAL RESPONSE OR FED STD 66, COMP 1074 FED STD 5TH MATERIAL RESPONSE OR FED STD 66, COMP 1075 FED STD 6TH MATERIAL RESPONSE OR FED STD 66, COMP 1078 FED STD 7TH MATERIAL RESPONSE OR FED STD 66, COMP 1080 FED STD 8TH MATERIAL RESPONSE OR FED STD 66, COMP 1084 FED STD 9TH MATERIAL RESPONSE OR FED STD 66, COMP 1085 FED STD 10TH MATERIAL RESPONSE OR FED STD 66, COMP 1086 FED STD 11TH MATERIAL RESPONSE OR FED STD 66, COMP 1090 FED STD 12TH MATERIAL RESPONSE; Material: STEEL COMP 1566 OR STEEL COMP 1069 OR 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; Ring Style: INTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-282-5311 still in active supply?

NSN 5325-00-282-5311 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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