The Bearing,sleeve, cataloged under National Stock Number 3120-01-033-1638, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Chrysler Corp Amplex Div. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-033-1638 |
| Primary Part Number | FF-3500 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Chrysler Corp Amplex Div |
| Status | ACTIVE |
| 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 |
| Flange Outside Diameter | 3.9850 INCHES MINIMUM AND 4.0150 INCHES MAXIMUM IN |
| Body Outside Diameter | 3.5000 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 3.0000 INCHES MINIMUM AND 3.0020 INCHES MAXIMUM IN |
| Flange Width | 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 932 OVERALL |
| Material | OIL LUBRICATING LUBRICATION |
| 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 |
|---|---|
| FF-3500 | Chrysler Corp Amplex Div (USA) |
| Reference | Meaning |
|---|---|
| FF3500 | 5/9 Secondary reference Eagle-Picher Industries Inc Kingwell Div |
| PF96112-38 | 5/9 Secondary reference Johnson Bronze Co |
| PLD301087PC78 | 3/9 Design control — primary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 3120-01-033-1638 is a Bearing,sleeve, manufactured by Chrysler Corp Amplex Div, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-033-1638 has 1 manufacturer part number on file: FF-3500 (Chrysler Corp Amplex Div).
Key specifications for FF-3500: 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. 14 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.