The Washer,convex, cataloged under National Stock Number 5310-01-022-5618, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-022-5618 |
| Primary Part Number | 922007-4 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Monadnock Company, the Dba Lisi Aerospace |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES BOTTOM |
| Surface Treatment Document and Classification | AMS 2414 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Style Designator | CONVEX |
| Material Document and Classification | AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Material Thickness | 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| Specification/standard Data | 81205-BACW10CA MANUFACTURERS STANDARD |
| Surface Treatment | LEAD OVERALL |
| Material | STEEL COMP 630 OR STEEL COMP 631 OVERALL |
| Hole Diameter | 0.260 INCHES MINIMUM AND 0.270 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 |
|---|---|
| 922007-4 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| 70188-104 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 942007-4 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| K29646-104 | Howmet Global Fastening Systems Inc (USA) |
| BACW10CA104CV | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| BACW10CA104CV | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 29646-104 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| BACW10CA104CV | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-022-5618 is a Washer,convex, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-022-5618 has 6 manufacturer part numbers on file: 922007-4 (Monadnock Company, the Dba Lisi Aerospace), 70188-104 (Sps Technologies, Llc Dba PB Fasteners), 942007-4 (Monadnock Company, the Dba Lisi Aerospace), K29646-104 (Howmet Global Fastening Systems Inc), BACW10CA104CV (Boeing Defence Australia Ltd Div Defense, Space & Security) and 1 more.
Key specifications for 922007-4: Surface Finish: 32.0 MICROINCHES BOTTOM; Surface Treatment Document and Classification: AMS 2414 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Style Designator: CONVEX. 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.