The Bearing,plain,rod End, cataloged under National Stock Number 3120-00-975-0121, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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 | 3120-00-975-0121 |
| Primary Part Number | 820-4551323 |
| Item Name | Bearing,plain,rod End |
| FSC / FSG | 3120 / 31 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shank Style | INTERNALLY THREADED W/BEAD AND WRENCH FLATS AND INSPECTION HOLE |
| Style Designator | BALL TYPE |
| Lubrication Feature | GROOVE RACE INSERT |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | LUBRICANT LUBRICATION |
| Thread Series Designator | UNF |
| Surface Treatment | CADMIUM ROD END BODY |
| Outer Member Width | 0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN |
| Thread Diameter | 0.250 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 28 |
| Shank Thread Length | 0.7500 INCHES MINIMUM IN |
| Inspection Hole Center to End Distance | 0.3070 INCHES MINIMUM AND 0.3170 INCHES MAXIMUM IN |
| Bore Center to Shank End Distance | 1.3020 INCHES MINIMUM AND 1.3220 INCHES MAXIMUM IN |
| Static Radial Load Rating | 2704 POUNDS LBS |
| Criticality Code Justification | FEAT |
| Inner Member Width | 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Outer Member Outside Diameter | 0.7400 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN |
| Features Provided | SCREW PLUG CLOSURE FITTING |
| Shank Width Across Wrench Flats | 0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 482 RACE INSERT |
| Material | STEEL COMP 1018 ROD END BODY |
| Material | STEEL COMP E52100 INNER MEMBER |
| Bore Diameter | 0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN |
| Thread Class | 3B |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| RO0090 | Dla Aviation Engineering Div Department of Defense (USA) |
| HF4 | Roller Bearing Company of America, Inc. (USA) |
| 820-4551323 | Spx Flow Us, Llc Dba Spx Valves & Controls (USA) |
| 820-4551323 PRIMARY | Naval Sea Systems Command (USA) |
| 15A7547PC14 | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 3120-00-975-0121 is a Bearing,plain,rod End, manufactured by Naval Sea Systems Command, classified under FSC 3120 (No Item Name Available). Status: active.
NSN 3120-00-975-0121 has 5 cross-referenced part numbers: RO0090 (Dla Aviation Engineering Div Department of Defense), HF4 (Roller Bearing Company of America, Inc.), 820-4551323 (Spx Flow Us, Llc Dba Spx Valves & Controls), 820-4551323 (Naval Sea Systems Command), 15A7547PC14 (Eaton Aerospace, Llc Dba Jackson South).
There are 2 known substitutes for 3120-00-975-0121: 3120-00-661-7484, 3120-00-855-8032. Verify interchangeability with system specifications before substitution.
Key specifications for 820-4551323: Shank Style: INTERNALLY THREADED W/BEAD AND WRENCH FLATS AND INSPECTION HOLE; Style Designator: BALL TYPE; Lubrication Feature: GROOVE RACE INSERT; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY. 28 total characteristics are documented in the Federal Logistics Information System.