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Sleeve Bearing

NSN: 3120-00-056-2421 | Model: B2055A

A tubular shaped item with or without flang (s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. it must have a visible or detectable means of lubrication or be self-lubricated. the over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. see also bushing, sleeve; spacer, sleeve; and washer (as modified) . excludes pin, hollow.

NSN Properties and Flags
NATO Stock Number
3120-00-056-2421
DEMIL
NO
Hole Diameter
0.1875 inches first
Overall Length
2.0625 inches
Body Outside Diameter
Between 3.6250 inches and 3.6260 inches
Body Inside Diameter
Between 2.5000 inches and 2.5010 inches
Left Flange Outside Diameter
3.8750 inches
Right Flange Outside Diameter
3.8750 inches
Left Flange Width
Between 0.1550 inches and 0.1560 inches
Right Flange Width
Between 0.1550 inches and 0.1560 inches
Corner Shape
Round all corners
Antirotation/lubrication Type And Quantity
2 hole
Material
Tin alloy uns l13890 inner layer
Style Designator
Segmented, external flanges both ends

Pricing and Availability

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NSN 3120-00-056-2421 Datasheet

Supply Class (FSC):
Unmounted Plain Bearings
Cross Reference:
  • B2055A
  • B2055PCN99
  • H7957PC99
  • H7970PC99
  • N99B2055A
  • NH7472PC99
  • 130033
  • B2055A
  • B2055PCN99
  • H7957PC99
  • H7970PC99
  • NH7472PC99
  • 130033
  • N99B2055A
Cage Codes:
  • Siemens Government Technologies, (CAGE 0BR59)
  • Dresser Rand Co Terry Corp Steam (CAGE 82328)
Schedule B & Trade:
  • Schedule B: 8482997090 (NAICS 332991)

    Parts, nesoi, for roller bearings or for combined ball/roller bearings, nesoi

  • SITC: 74699

    Parts of ball and roller bearings, n.E.S.

  • End Use: 21180

    Industrial machines, other

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.

ADPE

- Represents items with no adp components

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:

    114850 - Bearing/bushing o/t ball/roller i/s

  • WCC:

    742 - Bearings

  • 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.

  • LTL:

    Q - 70.0

  • ACC:

    V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    J
  • Quantity per pack
    1
  • Unit of Measure
    Ay
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    Sf9---n
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $3,071.54 to $5,119.24..
Does NSN 3120-00-056-2421 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 Air Force, and Department Of The Navy
What is the NIIN of NSN 3120-00-056-2421?
000562421 or 00-056-2421
Does NSN 3120-00-056-2421 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3120-00-056-2421?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963