PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-21248Ring,retaining

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5325-01-225-1094 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-225-1094 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-225-1094. Primary manufacturer part number: MIL-DTL-21248.
Features
  • Ring,retaining — FSC 5325
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: COPPER ALLOY 170 OR COPPER ALLOY 172
  • Inside Diameter: 0.192 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
  • Strength Rating: ERR-060
  • Usage Design: EXTERNAL
  • Major Thickness: 0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN
  • Ring Style: EXTERNAL
Applications
  • Applications requiring Copper Alloy 170 or Copper Alloy 172 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-225-1094, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-225-1094
Primary Part NumberMIL-DTL-21248
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
MaterialCOPPER ALLOY 170 OR COPPER ALLOY 172
Inside Diameter0.192 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
Strength RatingERR-060
Usage DesignEXTERNAL
Major Thickness0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN
Ring StyleEXTERNAL
Casehardening IndicatorNOT CASEHARDENED
Material Hardness Rating77.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 82.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2610-00-051-0020 INTERCHANGEABLE
Tire,pneumatic,vehicular
5905-00-104-8368 INTERCHANGEABLE
Resistor,fixed,composition
5930-00-153-8811511-006-00 INTERCHANGEABLE
Switch,push
Monaco Enterprises, Inc. Dba Monaco Enterprises Inc
5325-00-450-1426 INTERCHANGEABLE
Ring,retaining
6625-01-110-61135-10021 INTERCHANGEABLE
Post
Valhalla Scientific
5998-01-209-9897190-5664-002 INTERCHANGEABLE
Circuit Card Assembly
Shugart Corp Dba Intl Assembly Specialists
5330-01-553-56885100-21 INTERCHANGEABLE
Ring,retaining,airc
Rolls-Royce Corporation
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS16624-5021 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS16624-5021-1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
R271NAA0021NN643NNPF1 The American Society of Mechanical Engineers (USA)
5100-21 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
2610-00-051-0020INTERCHANGEABLE
TIRE,PNEUMATIC,VEHICULAR
5905-00-104-8368INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5930-00-153-8811INTERCHANGEABLE
SWITCH,PUSH
511-006-00
5325-00-450-1426INTERCHANGEABLE
RING,RETAINING
6625-01-110-6113INTERCHANGEABLE
POST
5-10021
5998-01-209-9897INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
190-5664-002
5330-01-553-5688INTERCHANGEABLE
RING,RETAINING,AIRC
5100-21

Frequently Asked Questions

What is NSN 5325-01-225-1094?

NSN 5325-01-225-1094 is a Ring,retaining, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-225-1094?

NSN 5325-01-225-1094 has 5 cross-referenced part numbers: MIL-DTL-21248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS16624-5021 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS16624-5021-1 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), R271NAA0021NN643NNPF1 (The American Society of Mechanical Engineers), 5100-21 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5325-01-225-1094?

There are 7 known substitutes for 5325-01-225-1094: 2610-00-051-0020, 5905-00-104-8368, 5930-00-153-8811 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-21248?

Key specifications for MIL-DTL-21248: Cross-Sectional Shape Style: RECTANGULAR; Material: COPPER ALLOY 170 OR COPPER ALLOY 172; Inside Diameter: 0.192 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN; Strength Rating: ERR-060. 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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