The Roller,chock, cataloged under National Stock Number 2040-00-274-2843, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-00-274-2843 |
| Item Name | Roller,chock |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Overall Diameter | 6.052 INCHES NOMINAL IN |
| General Characteristics Item Description | STEEL; STRAIGHT TYPE; DIM. DATA,25-1/2 IN. LG OVER-ALL,6.052 IN. DIA AT END,6.052 IN. DIA AT CENTER,5-1/2 IN. BORE DIA; W/O END CAPS; DATA REGARDING A TYPICAL MFR,ALMON A JOHNSON AND CO INC,NEW YORK,NY,CODE NO. 81782,PART NO. B232-254 IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B232-254 | 3/2 Design control — primary reference U.S. Government activity |
| 667113 | 5/2 Secondary reference U.S. Government activity |
| E232-11PCB232-254 | 3/2 Design control — primary reference U.S. Government activity |
| 153 | 5/2 Secondary reference U.S. Government activity |
| 10-1-20 | 5/2 Secondary reference U.S. Government activity |
NSN 2040-00-274-2843 is a Roller,chock, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
Key specifications for 2040-00-274-2843: Overall Diameter: 6.052 INCHES NOMINAL IN; General Characteristics Item Description: STEEL; STRAIGHT TYPE; DIM. DATA,25-1/2 IN. LG OVER-ALL,6.052 IN. DIA AT END,6.052 IN. DIA AT CENTER,5-1/2 IN. BORE DIA; W/O END CAPS; DATA REGARDING A TYPICAL MFR,ALMON A JOHNSON AND CO INC,NEW YORK,NY,CODE NO. 81782,PART NO. B232-254 IN; Overall Length: 25.500 INCHES NOMINAL IN; Material: STEEL. 3 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.