The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-01-063-5656, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-063-5656 |
| Primary Part Number | 12274439 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shoulder Height | 0.419 INCHES NOMINAL IN |
| Style Designator | SHOULDERED AND RECESSED |
| Outside Diameter | 2.411 INCHES NOMINAL IN |
| Recess Depth | 0.461 INCHES NOMINAL IN |
| Material Thickness | 0.461 INCHES NOMINAL IN |
| Shoulder Diameter | 1.750 INCHES NOMINAL IN |
| Recess Diameter | 1.380 INCHES NOMINAL IN |
| Material | STEEL COMP 1015 OVERALL |
| Hole Diameter | 0.660 INCHES NOMINAL IN |
| 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 |
|---|---|
| 12274439 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| XM23144 | 5/9 Secondary reference General Dynamics Land Systems Inc. |
NSN 5310-01-063-5656 is a Washer,shouldered and Recessed, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-063-5656 has 1 manufacturer part number on file: 12274439 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12274439: Shoulder Height: 0.419 INCHES NOMINAL IN; Style Designator: SHOULDERED AND RECESSED; Outside Diameter: 2.411 INCHES NOMINAL IN; Recess Depth: 0.461 INCHES NOMINAL IN. 9 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.