The Washer,spring Tension, cataloged under National Stock Number 5310-01-306-2219, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Associated Spring Corp Barnes Group Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-306-2219 |
| Primary Part Number | HS3028-716 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Associated Spring Corp Barnes Group Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Style Designator | SPRING TENSION |
| Outside Diameter | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Material Thickness | 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.302 INCHES MINIMUM AND 0.322 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 |
|---|---|
| HS3028-716 PRIMARY | Associated Spring Corp Barnes Group Inc (USA) |
| Reference | Meaning |
|---|---|
| HS3028-716 | 7/2 Vendor item drawing reference The Boeing Company |
| HS3028-716 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5310-01-306-2219 is a Washer,spring Tension, manufactured by Associated Spring Corp Barnes Group Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-306-2219 has 1 manufacturer part number on file: HS3028-716 (Associated Spring Corp Barnes Group Inc).
Key specifications for HS3028-716: Overall Height: 0.041 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 48.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Style Designator: SPRING TENSION. 8 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.