The Washer,convex, cataloged under National Stock Number 5310-01-659-8994, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Monadnock Company, the Dba Lisi Aerospace. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-659-8994 |
| Primary Part Number | BACW10CA62CVS |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Monadnock Company, the Dba Lisi Aerospace |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| Style Designator | CONVEX |
| Material Document and Classification | AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.825 INCHES MINIMUM AND 0.835 INCHES MAXIMUM IN |
| Recess Depth | 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN |
| Material Thickness | 0.175 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Color | BLACK OVERALL |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Material | STEEL COMP H11 OR STEEL COMP 8740 OVERALL |
| Hole Diameter | 0.408 INCHES MINIMUM AND 0.418 INCHES MAXIMUM IN |
| Recess Angle | 45.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| 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 |
|---|---|
| BACW10CA62CVS | Monadnock Company, the Dba Lisi Aerospace (USA) |
| BACW10CA62CVS | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACW10CA62CVS | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| BACW10CA62CVS | 3/2 Design control — primary reference U.S. Government activity |
| BACW10CA62CVS | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-659-8994 is a Washer,convex, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-659-8994 has 3 manufacturer part numbers on file: BACW10CA62CVS (Monadnock Company, the Dba Lisi Aerospace), BACW10CA62CVS (Sps Technologies, Llc Dba PB Fasteners), BACW10CA62CVS (Howmet Global Fastening Systems Inc).
Key specifications for BACW10CA62CVS: Surface Treatment Document and Classification: AMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL; Style Designator: CONVEX; Material Document and Classification: AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL; Outside Diameter: 0.825 INCHES MINIMUM AND 0.835 INCHES MAXIMUM IN. 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.