The Washer,spring Tension, cataloged under National Stock Number 5310-00-528-5893, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Solon Manufacturing Co Div Solon Manufacturing Co., Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-528-5893 |
| Primary Part Number | 91898NF/S1 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Solon Manufacturing Co Div Solon Manufacturing Co., Inc. |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Style Designator | SPRING TENSION |
| Material Document and Classification | MIL-S-18731 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.105 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN |
| Material Thickness | 0.098 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 229000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 6150 OVERALL |
| Hole Diameter | 0.565 INCHES MINIMUM AND 0.575 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 |
|---|---|
| 91898NF | Associated Spring Us, Llc Div Corry (USA) |
| 1849A-66B | Goodrich Corporation (USA) |
| 91898NF/S1 PRIMARY | Solon Manufacturing Co Div Solon Manufacturing Co., Inc. (USA) |
| 68B418007-203 | Associated Spring Us, Llc Div Corry (USA) |
| Reference | Meaning |
|---|---|
| 68B418007-201 | 5/9 Secondary reference Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West |
| 68B418007-203 | 7/9 Vendor item drawing reference Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West |
| 1849A66A | 3/9 Design control — primary reference Solon Manufacturing Co Div Solon Manufacturing Co., Inc. |
| 1849A-66B | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 68B418007-203 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5310-00-528-5893 is a Washer,spring Tension, manufactured by Solon Manufacturing Co Div Solon Manufacturing Co., Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-528-5893 has 4 manufacturer part numbers on file: 91898NF (Associated Spring Us, Llc Div Corry), 1849A-66B (Goodrich Corporation), 91898NF/S1 (Solon Manufacturing Co Div Solon Manufacturing Co., Inc.), 68B418007-203 (Associated Spring Us, Llc Div Corry).
Key specifications for 91898NF/S1: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Overall Height: 0.121 INCHES NOMINAL IN; Style Designator: SPRING TENSION; Material Document and Classification: MIL-S-18731 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.