The Cup,compression, cataloged under National Stock Number 5340-01-446-9972, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Chicago-Allis Mfg Corp. Government technical data includes 3 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-446-9972 |
| Primary Part Number | CB28312 |
| Item Name | Cup,compression |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Chicago-Allis Mfg Corp |
| Status | ACTIVE |
| Overall Diameter | 3.5300 INCHES MINIMUM AND 3.5500 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.5000 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN |
| Material | RUBBER OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| CB28312 PRIMARY | Chicago-Allis Mfg Corp (USA) |
| VEL/1010160 | Daimler Truck North America Llc (USA) |
| 1010160 | Velvac Inc (USA) |
NSN 5340-01-446-9972 is a Cup,compression, manufactured by Chicago-Allis Mfg Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-446-9972 has 3 manufacturer part numbers on file: CB28312 (Chicago-Allis Mfg Corp), VEL/1010160 (Daimler Truck North America Llc), 1010160 (Velvac Inc).
Key specifications for CB28312: Overall Diameter: 3.5300 INCHES MINIMUM AND 3.5500 INCHES MAXIMUM IN; Center Hole Diameter: 0.5000 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN; Material: RUBBER OVERALL. 3 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.