The Washer,lock, cataloged under National Stock Number 5310-01-592-9208, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Company. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-592-9208 |
| Primary Part Number | 91102A044 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Company |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 2.680 INCHES NOMINAL IN |
| Material Thickness | 0.380 INCHES MINIMUM IN |
| Surface Treatment | ZINC OVERALL |
| 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 |
|---|---|
| 91102A044 PRIMARY | Mcmaster-Carr Supply Company (USA) |
| Reference | Meaning |
|---|---|
| 429265E-ITEM27 | D/9 Drawing number reference only Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh |
NSN 5310-01-592-9208 is a Washer,lock, manufactured by Mcmaster-Carr Supply Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-592-9208 has 1 manufacturer part number on file: 91102A044 (Mcmaster-Carr Supply Company).
Key specifications for 91102A044: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 2.680 INCHES NOMINAL IN; Material Thickness: 0.380 INCHES MINIMUM IN; Special Features: WASHER FOR 1.750 INCHES SCREW SIZE 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.