The Washer,spring Tension, cataloged under National Stock Number 5310-01-233-8690, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-233-8690 |
| Primary Part Number | 16128-015 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Material Thickness | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.323 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 |
|---|---|
| 16128-015 PRIMARY | Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company (USA) |
| Reference | Meaning |
|---|---|
| 16128-15 | 5/9 Secondary reference Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company |
NSN 5310-01-233-8690 is a Washer,spring Tension, manufactured by Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-233-8690 has 1 manufacturer part number on file: 16128-015 (Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company).
Key specifications for 16128-015: Overall Height: 0.035 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN; Style Designator: SPRING TENSION; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.500 INCHES NOMINAL 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.