The Bearing,plain,rod End, cataloged under National Stock Number 3120-01-253-7183, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-253-7183 |
| Primary Part Number | 12349725-2 |
| Item Name | Bearing,plain,rod End |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shank Thread Length | 1.1250 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-C-320,TYPE 1 OR 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INNER MEMBER |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2 ASSN STD 2ND TREATMENT RESPONSE ROD END BODY |
| Bore Center to Shank End Distance | 1.8020 INCHES MINIMUM AND 1.8220 INCHES MAXIMUM IN |
| Inner Member Width | 0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM RACE INSERT |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM INNER MEMBER |
| Outer Member Width | 0.4110 INCHES MINIMUM AND 0.4210 INCHES MAXIMUM IN |
| Style Designator | BALL TYPE |
| Thread Diameter | 0.3750 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-7420 MIL SPEC 1ST MATERIAL RESPONSE OR AMS-6440 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE INNER MEMBER |
| Shank Width Across Wrench Flats | 0.5520 INCHES MINIMUM AND 0.5640 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Shank Style | INTERNALLY THREADED W/HEXAGON END AND INSPECTION HOLE |
| Surface Treatment | CHROMIUM INNER MEMBER |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE ROD END BODY |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Bore Diameter | 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 OR STEEL COMP 440C INNER MEMBER |
| Material | STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL OR STEEL COMP 630 OR STEEL COMP 631 ROD END BODY |
| Material | STEEL COMP 410 OR STEEL COMP 630 OR STEEL COMP 631 RACE INSERT |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Inspection Hole Center to End Distance | 0.4170 INCHES MINIMUM AND 0.4570 INCHES MAXIMUM IN |
| Outer Member Outside Diameter | 1.0150 INCHES MINIMUM AND 1.0350 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12349725-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3120-01-253-7183 is a Bearing,plain,rod End, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-253-7183 has 1 manufacturer part number on file: 12349725-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12349725-2: Shank Thread Length: 1.1250 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-C-320,TYPE 1 OR 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INNER MEMBER; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2 ASSN STD 2ND TREATMENT RESPONSE ROD END BODY; Bore Center to Shank End Distance: 1.8020 INCHES MINIMUM AND 1.8220 INCHES MAXIMUM IN. 25 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.