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Ring Spacer

NSN: 5365-00-929-3978 | Model: MP597

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

NSN Properties and Flags
NATO Stock Number
5365-00-929-3978
DEMIL
NO
Inside Diameter
0.531 inches
Outside Diameter
Between 0.671 inches and 0.673 inches
Overall Thickness
Between 0.036 inches and 0.038 inches
Surface Treatment
Passivate

Pricing and Availability

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NSN 5365-00-929-3978 Datasheet

Supply Class (FSC):
Spacers Shims Rings Bushings
Cross Reference:
  • MP597
  • MP497
Cage Codes:
  • Memcor Inc (CAGE 24681)
  • Systems Inc E (CAGE 83777)
Identification:
HMIC

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

PMIC

A - Item does not contain precious metal.

CRITL

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

Freight Information:
  • NMFC:

    194160 - Washer or gaskets, iron or steel,

  • WCC:

    713 - Metal hardware

  • 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:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LTL:

    U - 50.0

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    Z
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    T2200x-
  • 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 $1.09 to $1.82..
Does NSN 5365-00-929-3978 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, Bulgaria, Brazil, Spain, New Zealand, Republic Of Korea, Greece, and Turkey
What is the NIIN of NSN 5365-00-929-3978?
009293978 or 00-929-3978
Does NSN 5365-00-929-3978 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5365-00-929-3978?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Sep 07, 1966