The Washer,key, cataloged under National Stock Number 5310-00-830-1677, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Timken Corporation. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-830-1677 |
| Primary Part Number | TW104 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.166 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 1.562 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Material Thickness | 0.058 INCHES NOMINAL IN |
| External Key Quantity | 11 |
| Internal Prebent Key Length | 0.063 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| 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 |
|---|---|
| TW104 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| WH-104 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS0431S4400E1635908PC6 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-830-1677 is a Washer,key, manufactured by The Timken Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-830-1677 has 1 manufacturer part number on file: TW104 (The Timken Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-018-5310. Verify interchangeability with system specifications before substitution.
Key specifications for TW104: Internal Prebent Key Width: 0.166 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.562 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN. 10 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.