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Retaining Ring

NSN: 5325-00-801-3006 | Model: MS16633-1043
ITAR Registered seal

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a par (s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes ring, connecting, round.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Cross Sectional Shape
Inside Diameter
0.337 inches
Casehardening Indicator
Not casehardened
Major Thickness
0.035 inches
Ring Style
Usage Design
Material Hardness Rating
Between 47.0 rockwell c and 52.0 rockwell c
Steel, aisi c1066 to c1090
Steel, aisi c1066 to c1090
Surface Treatment
Surface Treatment
Cadmium plated
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE5E319T396K 2019-09-12 PHPHC 2500 EA

Pricing and Availability

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NSN 5325-00-801-3006 Datasheet

Supply Class (FSC):
Fastening Devices
Cross Reference:
  • MS16633-1043
  • MILR21248
  • 1000-43-ST-CD
  • S-1193-43
  • A-4620-4 NO 22
  • 5133-43MD
  • 5133-43-S-MD
  • 1000-43STCD
  • 5133-43ZD
  • MS16633-2043
  • 93605-110
  • 93605-110
  • 5133-43MD
  • 5133-43-S-MD
  • 5365008013006
Cage Codes:
  • Military Standards (CAGE 96906)
  • Military Specifications (CAGE 81349)
  • Commonwealth Plastics Corp (CAGE 97864)
  • Challenge Machinery Co The (CAGE 11444)
  • Rotor Clip Company Inc. (CAGE 07382)
  • Truarc Company Llc (CAGE 79136)
  • Rca Corp (CAGE 21921)
  • Lockheed Martin Corp (CAGE 49671)
  • E.c.a Etablissement (CAGE SCY13)
  • 5325-00-801-3006 replaces 5325-00-205-4218
  • 5325-00-801-3006 replaces 5325-00-835-5935
Schedule B & Trade:
  • Schedule B: 9606100000 (NAICS 339993)

    Press-fasteners, snap-fasteners & press-studs & parts therefor

  • SITC: 89983

    Press-fasteners, snap-fasteners and press-studs and parts therefor; buttons

  • End Use: 12640

    Finished textile supplies


N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.


U - Precious metal content is unknown


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    063520 - Waveguide in boxes/crates

  • WCC:

    723 - Radio parts and equipment, excluding tubes packed separately

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $0.20 to $0.34..
Does NSN 5325-00-801-3006 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, Department Of The Air Force, U.s. Marine Corps, Department Of The Navy, Defense Logistics Agency, National Aeronautics and Space Administration, Austria, Spain, Morocco, Belgium, Canada, New Zealand, France, Germany, Republic Of Korea, United Kingdom, Netherlands, Italy, Greece, and Turkey
What is the NIIN of NSN 5325-00-801-3006?
008013006 or 00-801-3006
Does NSN 5325-00-801-3006 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5325-00-801-3006?
Solicitation SPE5E319T396K for qty 2500 on 09/05/2019
When was this national stock number assigned to the federal catalog?
Jan 01, 1960