The Washer,concave, cataloged under National Stock Number 5310-01-319-5873, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-319-5873 |
| Primary Part Number | 03A084-10L |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Radius | 0.340 INCHES NOMINAL IN |
| Style Designator | CONCAVE |
| Material Document and Classification | AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5520 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5528 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.610 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN |
| Material Thickness | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 OVERALL |
| Hole Diameter | 0.417 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 |
|---|---|
| HL75-10DW | Hi-Shear Corporation (USA) |
| 03A084-10L PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| HL75-10DW | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL75-10DW | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL75-10DW | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-319-5873 is a Washer,concave, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-319-5873 has 4 manufacturer part numbers on file: HL75-10DW (Hi-Shear Corporation), 03A084-10L (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), HL75-10DW (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL75-10DW (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 03A084-10L: Radius: 0.340 INCHES NOMINAL IN; Style Designator: CONCAVE; Material Document and Classification: AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5520 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5528 ASSN STD 3RD MATERIAL RESPONSE OVERALL; Outside Diameter: 0.610 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN. 7 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.