The Washer,spring Tension, cataloged under National Stock Number 5310-01-068-8451, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Haldex Aktiebolag. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-068-8451 |
| Primary Part Number | 648118 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Haldex Aktiebolag |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Material Document and Classification | MIL-S-5059,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.845 INCHES MINIMUM AND 1.845 INCHES MINIMUM AND 1.848 INCHES MAXIMUM1.848 INCHES MAXIMUM IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.027 INCHES MINIMUM AND 0.055 INCHES MAXIMUM0.055 INCHES MAXIMUM IN |
| Material | STEEL COMP 301 OVERALL |
| Hole Diameter | 0.265 INCHES MINIMUM AND 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM0.270 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 |
|---|---|
| 648118 PRIMARY | Haldex Aktiebolag (SWE) |
| 648118 | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 648118 | 5/9 Secondary reference U.S. Government activity |
| 648118 | 3/9 Design control — primary reference Haldex Brake Products Ab |
NSN 5310-01-068-8451 is a Washer,spring Tension, manufactured by Haldex Aktiebolag, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-068-8451 has 2 manufacturer part numbers on file: 648118 (Haldex Aktiebolag), 648118 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for 648118: Overall Height: 0.072 INCHES MINIMUM AND 0.072 INCHES MINIMUM AND 0.092 INCHES MAXIMUM0.092 INCHES MAXIMUM IN; Style Designator: SPRING TENSION; Material Document and Classification: MIL-S-5059,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.845 INCHES MINIMUM AND 1.845 INCHES MINIMUM AND 1.848 INCHES MAXIMUM1.848 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.