The Washer,saddle, cataloged under National Stock Number 5310-00-371-6777, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dayton-Walther Corp. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-371-6777 |
| Primary Part Number | B1075 |
| Item Name | Washer,saddle |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dayton-Walther Corp |
| Status | ACTIVE |
| Outside Diameter | 3.469 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN |
| Thickness at Bolt Hole | 0.1207 INCHES MINIMUM AND 0.1239 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.750 INCHES NOMINAL 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 |
|---|---|
| B1075 PRIMARY | Dayton-Walther Corp (USA) |
| Reference | Meaning |
|---|---|
| 8170-15-6M | 5/9 Secondary reference Olson Mfg Co |
| 8170-15-6M | 5/9 Secondary reference Eidal International Corporation |
| 8170-15-6M | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-371-6777 is a Washer,saddle, manufactured by Dayton-Walther Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-371-6777 has 1 manufacturer part number on file: B1075 (Dayton-Walther Corp).
Key specifications for B1075: Outside Diameter: 3.469 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN; Thickness at Bolt Hole: 0.1207 INCHES MINIMUM AND 0.1239 INCHES MAXIMUM IN; Special Features: WITH RAISED BOSS; Material: STEEL OVERALL. 4 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.