The Washer,convex, cataloged under National Stock Number 5310-01-535-3152, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-535-3152 |
| Primary Part Number | 13506405 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Style Designator | CONVEX |
| Outside Diameter | 37.0 MILLIMETERS NOMINAL MM |
| Features Provided | CASEHARDENED |
| Material Thickness | 6.3 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| Hole Diameter | 20.4 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 13506405 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13506405 | 5/9 Secondary reference Gkn Fokker Aerospace B.v. |
| 13506405 | 5/9 Secondary reference Lockheed Martin Corp Missiles & Fire Control Dallas Lufkin Opns |
| 5310PL2069201 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-535-3152 is a Washer,convex, manufactured by Lockheed Martin Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-535-3152 has 1 manufacturer part number on file: 13506405 (Lockheed Martin Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-648-3778, 5310-01-730-3804. Verify interchangeability with system specifications before substitution.
Key specifications for 13506405: Style Designator: CONVEX; Outside Diameter: 37.0 MILLIMETERS NOMINAL MM; Features Provided: CASEHARDENED; Material Thickness: 6.3 MILLIMETERS NOMINAL MM. 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.