The Dog Sleeve, cataloged under National Stock Number 2040-01-491-4969, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-491-4969 |
| Primary Part Number | 123-4498184 PART 72 |
| Item Name | Dog Sleeve |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 1.750 INCHES NOMINAL IN |
| General Characteristics Item Description | MATERIAL REF ASTM-A-53; BORE DIA IS 1.140 INCHES IN |
| Surface Treatment | ZINC |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 123-4498184 PART 72 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 123-4498184 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2040-01-491-4969 is a Dog Sleeve, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-491-4969 has 1 manufacturer part number on file: 123-4498184 PART 72 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-491-5017. Verify interchangeability with system specifications before substitution.
Key specifications for 123-4498184 PART 72: Overall Diameter: 1.750 INCHES NOMINAL IN; General Characteristics Item Description: MATERIAL REF ASTM-A-53; BORE DIA IS 1.140 INCHES IN; Overall Length: 5.062 INCHES NOMINAL IN; Surface Treatment: ZINC. 4 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.