The Washer,key, cataloged under National Stock Number 5310-01-339-5957, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Heligear Acquisition Co. Dba Northstar Aerospace, Inc.. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-339-5957 |
| Primary Part Number | 584153 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Heligear Acquisition Co. Dba Northstar Aerospace, Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-F-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 1.314 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Outside Diameter | 1.290 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN |
| Material Thickness | 0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN |
| External Key Quantity | 15 |
| Internal Prebent Key Length | 0.062 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| External Prebent Key Width | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.801 INCHES MINIMUM AND 0.816 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 |
|---|---|
| 584153 PRIMARY | Heligear Acquisition Co. Dba Northstar Aerospace, Inc. (USA) |
NSN 5310-01-339-5957 is a Washer,key, manufactured by Heligear Acquisition Co. Dba Northstar Aerospace, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-339-5957 has 1 manufacturer part number on file: 584153 (Heligear Acquisition Co. Dba Northstar Aerospace, Inc.).
Key specifications for 584153: Surface Treatment Document and Classification: MIL-F-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.314 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN; Style Designator: KEY. 12 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.