The Washer,spring Tension, cataloged under National Stock Number 5310-00-203-8467, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-203-8467 |
| Primary Part Number | 4M64-2 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Material Thickness | 0.010 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 1060 OVERALL |
| Hole Diameter | 0.198 INCHES MINIMUM AND 0.208 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 |
|---|---|
| 4M64-2 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 3502-10-78-0543DG | 5/9 Secondary reference Itw Shakeproof Automotive Products |
| 3502-10-10-0543DG | 5/9 Secondary reference Itw Shakeproof Automotive Products |
| M64-2 | 5/9 Secondary reference The Boeing Company Div Defense |
| 3502-10-78-1643D | 5/9 Secondary reference Itw Shakeproof Automotive Products |
| 5804-247-2 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-203-8467 is a Washer,spring Tension, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-203-8467 has 1 manufacturer part number on file: 4M64-2 (The Boeing Company Div Defense).
2 possible matches (shared part number, not a government interchangeability claim): 6910-01-671-8849, 1240-01-696-2758. Verify interchangeability with system specifications before substitution.
Key specifications for 4M64-2: Overall Height: 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN; Material Thickness: 0.010 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.