The Washer,shouldered, cataloged under National Stock Number 5310-00-403-8310, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ami Industries, Inc Div Utc Aerospace Systems. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-403-8310 |
| Primary Part Number | 518B10009 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ami Industries, Inc Div Utc Aerospace Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Height | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATED |
| Style Designator | SHOULDERED |
| Material Document and Classification | MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.125 INCHES NOMINAL IN |
| Material Thickness | 0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.002 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 0.876 INCHES MINIMUM AND 0.878 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 |
|---|---|
| 518B10009 PRIMARY | Ami Industries, Inc Div Utc Aerospace Systems (USA) |
NSN 5310-00-403-8310 is a Washer,shouldered, manufactured by Ami Industries, Inc Div Utc Aerospace Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-403-8310 has 1 manufacturer part number on file: 518B10009 (Ami Industries, Inc Div Utc Aerospace Systems).
Key specifications for 518B10009: Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED; Style Designator: SHOULDERED. 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.