The Washer,flat, cataloged under National Stock Number 5310-01-466-5742, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-466-5742 |
| Primary Part Number | 701-6938579 PC 20 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 2.500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-C-390 ALLOY C86200 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY 862 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.812 INCHES NOMINAL IN |
| Thickness | 0.188 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 |
|---|---|
| 701-6938579 PC 20 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2155-513 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 701-6938579 PC 20 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 701-6600336 SH | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 2155-513 PC 20 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 701-6938582 SH 4 PC 48 | 5/9 Secondary reference Naval Sea Systems Command |
| 6938579 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5310-01-466-5742 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-466-5742 has 1 manufacturer part number on file: 701-6938579 PC 20 (Naval Sea Systems Command).
Key specifications for 701-6938579 PC 20: Overall Diameter: 2.500 INCHES NOMINAL IN; Material Document and Classification: QQ-C-390 ALLOY C86200 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Special Features: LUBRITE SURFACE TREATMENT. 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.