The Washer,concave, cataloged under National Stock Number 5310-00-123-9042, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-123-9042 |
| Primary Part Number | HL83-10PBW |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Radius | 0.340 INCHES NOMINAL IN |
| Style Designator | CONCAVE |
| Outside Diameter | 0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN |
| Material Thickness | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 OVERALL |
| Hole Diameter | 0.423 INCHES NOMINAL 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 |
|---|---|
| HL83-10W | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL83-10W | Hi-Shear Corporation (USA) |
| HL83-10PBW PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL83-10W | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL83-10PBW PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL83-10W | Satair A/s (DNK) |
| HL83-10PBW PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL83-10PBW | 3/2 Design control — primary reference U.S. Government activity |
| 3M297P-5 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HL83-1W | C/1 Advisory reference — outside the item-of-supply concept Hi-Shear Corporation |
| 3M297-5 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 5310-00-123-9042 is a Washer,concave, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-123-9042 has 7 manufacturer part numbers on file: HL83-10W (Fairchild Fasteners Europe - Vsd Gmbh), HL83-10W (Hi-Shear Corporation), HL83-10PBW (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL83-10W (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL83-10PBW (Sps Technologies, Llc Dba PB Fasteners) and 2 more.
Key specifications for HL83-10PBW: Radius: 0.340 INCHES NOMINAL IN; Style Designator: CONCAVE; Outside Diameter: 0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN; Material Thickness: 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM 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.