The Washer,convex, cataloged under National Stock Number 5310-01-105-0548, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-105-0548 |
| Primary Part Number | BACW10CA3CV |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OUTER |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Style Designator | CONVEX |
| Outside Diameter | 0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN |
| Material Thickness | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Specification/standard Data | 81205-BACW10CA MANUFACTURERS STANDARD |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 630 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 |
|---|---|
| BACW10CA3CV PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACW10CA3CV | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| BACW10CA3CV | Boeing Defence Australia Ltd (AUS) |
| BACW10CA3CV | Howmet Global Fastening Systems Inc (USA) |
| BACW10CA3CV | Monadnock Company, the Dba Lisi Aerospace (USA) |
| Reference | Meaning |
|---|---|
| BACW10CA3CV | 5/2 Secondary reference U.S. Government activity |
| K29646-3 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 942007-3 | 5/9 Secondary reference Monadnock Company, the Dba Lisi Aerospace |
| 70188-3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BACW10CA3CV | 7/2 Vendor item drawing reference U.S. Government activity |
| 70188-3 | 5/9 Secondary reference Sps Technologies Afg Div |
| 70188-3 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-105-0548 is a Washer,convex, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-105-0548 has 5 manufacturer part numbers on file: BACW10CA3CV (Sps Technologies, Llc Dba PB Fasteners), BACW10CA3CV (Boeing Defence Australia Ltd Div Defense, Space & Security), BACW10CA3CV (Boeing Defence Australia Ltd), BACW10CA3CV (Howmet Global Fastening Systems Inc), BACW10CA3CV (Monadnock Company, the Dba Lisi Aerospace).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-652-6681, 5310-01-669-3902. Verify interchangeability with system specifications before substitution.
Key specifications for BACW10CA3CV: Surface Finish: 32.0 MICROINCHES OUTER; Surface Treatment Document and Classification: AMS 2416 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.