The Washer,lock, cataloged under National Stock Number 5310-01-470-0446, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Metric and Multistandard Components Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-470-0446 |
| Primary Part Number | 127BZY-5M |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Metric and Multistandard Components Corp |
| Status | ACTIVE |
| Hardness Rating | 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 9.2 MILLIMETERS NOMINAL MM |
| Material Thickness | 1.2 MILLIMETERS NOMINAL MM |
| Color | YELLOW OVERALL |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 5.1 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 127BZY-5M PRIMARY | Metric and Multistandard Components Corp (USA) |
| 127BZY-5M | Metric & Multistandard Components Corp. (USA) |
| Reference | Meaning |
|---|---|
| 96-23613 | 5/9 Secondary reference Department of Defense Project Manager-Mobile Electric Power |
| 96-33613-5 | 7/2 Vendor item drawing reference Department of Defense Project Manager-Mobile Electric Power |
NSN 5310-01-470-0446 is a Washer,lock, manufactured by Metric and Multistandard Components Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-470-0446 has 2 manufacturer part numbers on file: 127BZY-5M (Metric and Multistandard Components Corp), 127BZY-5M (Metric & Multistandard Components Corp.).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-470-0448, 5310-01-470-0450. Verify interchangeability with system specifications before substitution.
Key specifications for 127BZY-5M: Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 9.2 MILLIMETERS NOMINAL MM; Material Thickness: 1.2 MILLIMETERS NOMINAL MM. 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.