The Bushing,sleeve, cataloged under National Stock Number 3120-01-045-6667, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Kitco Llc. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-045-6667 |
| Primary Part Number | 24SRF1128-21 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Kitco Llc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INTERMEDIATE LAYER |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE LEFT FLANGE BODY CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF FLANGE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE RIGHT END SURFACE OF BODY |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE LEFT END SURFACE OF BODY AND FLANGE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE RIGHT END SURFACE OF LEFT FLANGE |
| Flange Outside Diameter | 0.5520 INCHES MINIMUM AND 0.5720 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.3766 INCHES MINIMUM AND 0.3775 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.2490 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OUTSIDE DIAMETER SURFACE OF FLANGE |
| Surface Treatment | CADMIUM LEFT END SURFACE OF BODY AND FLANGE |
| Surface Treatment | CADMIUM RIGHT END SURFACE OF BODY |
| Surface Treatment | CADMIUM OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Treatment | CADMIUM RIGHT END SURFACE OF LEFT FLANGE |
| Flange Width | 0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-I-6866 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 | STEEL COMP 4130 OVERALL |
| 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 |
|---|---|
| 24SRF1128-21 PRIMARY | Kitco Llc (USA) |
| 24SRF1128-21 | Equipment Parts Sales (USA) |
| 24SRF1128-21 PRIMARY | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 24SRF1128-21 | 3/9 Design control — primary reference The Boeing Company Div Defense |
NSN 3120-01-045-6667 is a Bushing,sleeve, manufactured by Kitco Llc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-045-6667 has 3 manufacturer part numbers on file: 24SRF1128-21 (Kitco Llc), 24SRF1128-21 (Equipment Parts Sales), 24SRF1128-21 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
Key specifications for 24SRF1128-21: Surface Finish: 125.0 MICROINCHES INTERMEDIATE LAYER; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE LEFT FLANGE BODY CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER. 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.