The Washer,shouldered, cataloged under National Stock Number 5310-01-618-5811, 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 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-618-5811 |
| Primary Part Number | 12545528 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shoulder Height | 0.20 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED AND RECESSED |
| Material Document and Classification | ASTMA564 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.97 INCHES MINIMUM AND 1.03 INCHES MAXIMUM IN |
| Recess Depth | 0.15 INCHES MINIMUM AND 0.17 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Recess Diameter | 0.54 INCHES MINIMUM AND 0.56 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM 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 |
|---|---|
| 12545528 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-618-5811 is a Washer,shouldered, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-618-5811 has 1 manufacturer part number on file: 12545528 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12545528: Overall Height: 0.41 INCHES MINIMUM AND 0.43 INCHES MAXIMUM IN; Shoulder Height: 0.20 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN; Hardness Rating: 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Style Designator: SHOULDERED AND RECESSED. 10 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.