The Bearing,plain,spherical, cataloged under National Stock Number 3120-00-509-6001, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Kahr Bearings. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-509-6001 |
| Primary Part Number | KSU4-45 |
| Item Name | Bearing,plain,spherical |
| FSC / FSG | 3120 / 31 — No Item Name Available |
| Manufacturer | Sargent Aerospace & Defense, Llc Dba Kahr Bearings |
| Status | ACTIVE |
| Material Document and Classification | AMS 7440 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Style Designator | SOLID |
| Surface Treatment | CHROMIUM OVERALL |
| Material | STEEL COMP E52100 OR STEEL COMP E50100 OR STEEL COMP E51100 OVERALL |
| Spherical Body Diameter | 0.5950 INCHES MINIMUM AND 0.6050 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.2480 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| KSU4-45 PRIMARY | Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA) |
| 233431 | Turbo Power & Marine System Inc Sub of United Technologies Corp (USA) |
| 233431 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| KSB107104 PRIMARY | Kamatics Corporation (USA) |
NSN 3120-00-509-6001 is a Bearing,plain,spherical, manufactured by Sargent Aerospace & Defense, Llc Dba Kahr Bearings, classified under FSC 3120 (No Item Name Available). Status: active.
NSN 3120-00-509-6001 has 4 cross-referenced part numbers: KSU4-45 (Sargent Aerospace & Defense, Llc Dba Kahr Bearings), 233431 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 233431 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), KSB107104 (Kamatics Corporation).
There are 2 known substitutes for 3120-00-509-6001: 5325-01-125-9006, 4720-01-174-6018. Verify interchangeability with system specifications before substitution.
Key specifications for KSU4-45: Material Document and Classification: AMS 7440 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Corner Shape: SQUARE INSIDE LEFT CORNER; Overall Length: 0.4790 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM IN; Hardness Rating: 60.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.