The Washer,shouldered, cataloged under National Stock Number 5310-00-401-3365, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mechanical Rubber Products Company, Inc. Dba Mechanical Rubber Prdts Co Inc Div Mechanical Rubber Products Co., Inc.. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-401-3365 |
| Primary Part Number | 13211E8170 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mechanical Rubber Products Company, Inc. Dba Mechanical Rubber Prdts Co Inc Div Mechanical Rubber Products Co., Inc. |
| Status | ACTIVE |
| Shoulder Height | 0.062 INCHES NOMINAL IN |
| Hardness Rating | 70.0 DUROMETER NOMINAL |
| Style Designator | SHOULDERED |
| Material Document and Classification | ASTM D2000 TYPE BG 715 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.500 INCHES NOMINAL IN |
| Material Thickness | 0.250 INCHES NOMINAL IN |
| Shoulder Diameter | 0.875 INCHES NOMINAL IN |
| Color | BLACK OVERALL |
| Minimum Tensile Strength | 1500 POUNDS PER SQUARE INCH LBS |
| Material | RUBBER SYNTHETIC OVERALL |
| Hole Diameter | 0.375 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 |
|---|---|
| 13211E8170 | Mechanical Rubber Products Company, Inc. Dba Mechanical Rubber Prdts Co Inc Div Mechanical Rubber Products Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 13211E8170 | 3/2 Design control — primary reference U.S. Government activity |
| R63870B11E8170 | 5/9 Secondary reference Unifab Industries Inc |
| R66172B18170 | 5/9 Secondary reference Unifab Industries Inc |
NSN 5310-00-401-3365 is a Washer,shouldered, manufactured by Mechanical Rubber Products Company, Inc. Dba Mechanical Rubber Prdts Co Inc Div Mechanical Rubber Products Co., Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-401-3365 has 1 manufacturer part number on file: 13211E8170 (Mechanical Rubber Products Company, Inc. Dba Mechanical Rubber Prdts Co Inc Div Mechanical Rubber Products Co., Inc.).
Key specifications for 13211E8170: Shoulder Height: 0.062 INCHES NOMINAL IN; Hardness Rating: 70.0 DUROMETER NOMINAL; Style Designator: SHOULDERED; Material Document and Classification: ASTM D2000 TYPE BG 715 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 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.