National Stock Number
Self-Aligning Plain Bearing — Bearings, Plain, Unmounted (FSC 3120) · Part No. AS21155-MS21155S16
| National Stock Number | 3120-00-165-5958 |
|---|---|
| Item name | Self-Aligning Plain Bearing |
| Part number (commercial reference) | AS21155-MS21155S16 |
| Alternate references | AS21155; MS21155S16 |
| Unit of issue | EA |
| NIIN | 001655958 |
| NIIN assigned by | United States (NCB code 00) |
| Federal Supply Class (FSC) | 3120 — Bearings, Plain, Unmounted |
| Federal Supply Group (FSG) | 31 — Bearings |
| Unit price (USD) | $157.71 |
| Country of origin | Türkiye (Turkey) |
| Lead time | Within 90 days of order |
| Minimum order | May apply — confirm on quote |
| Documentation | Source documentation provided on all orders |
Characteristics decoded from the federal cataloging record for this self-aligning plain bearing. Confirm controlling dimensions against your drawing or standard sheet before ordering.
| Hardness Rating | 27.0 Rockwell C Minimum Outer Race Member And 36.0 Rockwell C Maximum Outer Race Member |
|---|---|
| Hardness Rating | 27.0 Rockwell C Minimum Inner Member And 36.0 Rockwell C Maximum Inner Member |
| Material | Steel Comp 4340 Outer Race Member Or Steel Comp E4340 Outer Race Member Or Steel Comp 4130 Outer Race Member Or Steel Comp 8630 Outer Race Member |
| Material | Steel Comp E52100 Inner Member Or Steel Comp 440C Inner Member |
| Surface Treatment | Chromium Inner Member |
| Surface Treatment | Chromium Outer Race Member |
Plain (journal/sleeve) bearings, bushings, and bearing inserts that support loads through a sliding rather than rolling interface.
Price in context. Across the 67 items we currently stock in FSC 3120 (Bearings, Plain, Unmounted), published unit prices run from $3.85 to $6,750.00. At $157.71, this item sits above the class median of $87.61.
Stock activity. This item has appeared once in our supplier stock feed, most recently listed 2026-07-10, with a lot quantity of 41 units. Listing activity is a practical signal of ongoing availability; confirm current stock and firm pricing on your quote.
Typical applications. Pivot points, low-speed shafts, linkages, and bushed joints.
Applicable standards. SAE and MIL bearing standards; bronze, composite, and lined bearings.
NSN 3120-00-165-5958 is supplied by Quick Brown Fox Solutions as a stock resale item. For custom-manufactured or prototype parts to your print, see our U.S.-based CNC machining services.
Country of origin: Türkiye (Turkey). Turkey is a NATO ally and a normal-trade-relations partner of the United States, and Turkish-origin end items are eligible for a wide range of U.S. federal and DLA procurements.
TAA note: Turkey is not a Trade Agreements Act (TAA) designated country, so these items are generally not eligible for TAA-covered solicitations. They are offerable under the Buy American Act and many non-TAA DLA buys. Buyers are responsible for confirming the origin requirements of their specific solicitation.
Full country-of-origin and source documentation is provided with every order. Fulfillment within 90 days of order. Minimum order may apply.
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