The Washer,spring Tension, cataloged under National Stock Number 5310-01-393-7780, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution Services X, Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-393-7780 |
| Primary Part Number | S11018A-1 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Boeing Distribution Services X, Inc. |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Material Document and Classification | AMS5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.350 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN |
| Material Thickness | 0.082 INCHES NOMINAL IN |
| Material | STEEL COMP 631 OVERALL |
| Hole Diameter | 1.115 INCHES MINIMUM AND 1.125 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 |
|---|---|
| S11018A-1 | Boeing Distribution Services X, Inc. (USA) |
| Reference | Meaning |
|---|---|
| S11018A-1 | 3/2 Design control — primary reference U.S. Government activity |
| S11018-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-393-7780 is a Washer,spring Tension, manufactured by Boeing Distribution Services X, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-393-7780 has 1 manufacturer part number on file: S11018A-1 (Boeing Distribution Services X, Inc.).
Key specifications for S11018A-1: Overall Height: 0.120 INCHES NOMINAL IN; Style Designator: SPRING TENSION; Material Document and Classification: AMS5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.350 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN. 6 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.