PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16-2-21Ring,retaining

Allard Nazarian Group, Inc. Dba Granite State Manufacturing · NSN 5325-00-049-9053 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-049-9053 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-049-9053. Primary manufacturer part number: 16-2-21.
Features
  • Ring,retaining — FSC 5325
  • Minor Thickness: 0.070 INCHES NOMINAL IN
  • Inside Diameter: 2.920 INCHES NOMINAL IN
  • Material Document and Classification: FED STD 66 CLASS FS 1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
  • Material: STEEL
  • Departure From Cited Designator: QKCQ
  • Major Thickness: 0.093 INCHES NOMINAL IN
  • Ring Style: EXTERNAL
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-049-9053, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Allard Nazarian Group, Inc. Dba Granite State Manufacturing. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-049-9053
Primary Part Number16-2-21
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerAllard Nazarian Group, Inc. Dba Granite State Manufacturing
StatusACTIVE
Minor Thickness0.070 INCHES NOMINAL IN
Inside Diameter2.920 INCHES NOMINAL IN
Material Document and ClassificationFED STD 66 CLASS FS 1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
MaterialSTEEL
Departure From Cited DesignatorQKCQ
Major Thickness0.093 INCHES NOMINAL IN
Ring StyleEXTERNAL
Casehardening IndicatorNOT CASEHARDENED
Usage DesignEXTERNAL
Material Hardness Rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape StyleBEVELED ONE INSIDE CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-293-9931 INTERCHANGEABLE
Transformer,radio Frequency
2815-00-324-05125102315 INTERCHANGEABLE
Parts Kit,piston Assembly,engine
Rolls-Royce Solutions America Inc
5330-00-500-125016221 INTERCHANGEABLE
Gasket
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
2510-00-554-87731622 INTERCHANGEABLE
Spring Assembly,leaf
Pdi Ground Support Systems, Inc.
6930-01-041-74851622-1 INTERCHANGEABLE
Gauge,special
Malwin Electronics Corp.
3455-01-045-4016TABLE 21, D3/4IN INTERCHANGEABLE
Cutter,milling,end
The American Society of Mechanical Engineers
5999-01-123-527116221 INTERCHANGEABLE
Shielding Gasket,electronic
Dayton-Granger, Inc.
5305-01-135-745516221 INTERCHANGEABLE
Screw
Westerbeke Corporation
3040-01-360-444816221 INTERCHANGEABLE
Housing,mechanical Drive
New Venture Gear Inc New Process Gear Div
4730-01-450-3103IS-20F-300 2 INCH INTERCHANGEABLE
Strainer,sediment
Tate Andale, Llc
Cross-Reference Index
Part NumberManufacturer
16-2-21 Allard Nazarian Group, Inc. Dba Granite State Manufacturing (USA)
5102-315 Truarc Company Llc Dba Waldes Truarc (USA)
2068P37 Fairchild Fasteners Europe - Vsd Gmbh (DEU)
5102-315 Rotor Clip Company, Inc. (USA)
MS16630-315 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
3J1576 Caterpillar Inc Div Caterpillar Defense (USA)
362-1008PT37 Raytheon Company Div Corp (USA)
2068P37 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
Related Parts
5950-00-293-9931INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
2815-00-324-0512INTERCHANGEABLE
PARTS KIT,PISTON ASSEMBLY,ENGINE
5102315
5330-00-500-1250INTERCHANGEABLE
GASKET
16221
2510-00-554-8773INTERCHANGEABLE
SPRING ASSEMBLY,LEAF
1622
6930-01-041-7485INTERCHANGEABLE
GAUGE,SPECIAL
1622-1
3455-01-045-4016INTERCHANGEABLE
CUTTER,MILLING,END
TABLE 21, D3/4IN
5999-01-123-5271INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
16221
5305-01-135-7455INTERCHANGEABLE
SCREW
16221
3040-01-360-4448INTERCHANGEABLE
HOUSING,MECHANICAL DRIVE
16221
4730-01-450-3103INTERCHANGEABLE
STRAINER,SEDIMENT
IS-20F-300 2 INCH
5998-01-579-5590INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
16221
6515-01-589-5078INTERCHANGEABLE
SCREW,BONE
02.205.110

Frequently Asked Questions

What is NSN 5325-00-049-9053?

NSN 5325-00-049-9053 is a Ring,retaining, manufactured by Allard Nazarian Group, Inc. Dba Granite State Manufacturing, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-049-9053?

NSN 5325-00-049-9053 has 8 cross-referenced part numbers: 16-2-21 (Allard Nazarian Group, Inc. Dba Granite State Manufacturing), 5102-315 (Truarc Company Llc Dba Waldes Truarc), 2068P37 (Fairchild Fasteners Europe - Vsd Gmbh), 5102-315 (Rotor Clip Company, Inc.), MS16630-315 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5325-00-049-9053?

There are 12 known substitutes for 5325-00-049-9053: 5950-00-293-9931, 2815-00-324-0512, 5330-00-500-1250 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16-2-21?

Key specifications for 16-2-21: Minor Thickness: 0.070 INCHES NOMINAL IN; Inside Diameter: 2.920 INCHES NOMINAL IN; Material Document and Classification: FED STD 66 CLASS FS 1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE; Material: STEEL. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com