The Washer,flat, cataloged under National Stock Number 5310-00-063-2608, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Frederick Custom Machining Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-063-2608 |
| Primary Part Number | 27979-A-307P |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Frederick Custom Machining Inc |
| Status | ACTIVE |
| Surface Finish | 8.0 MICROINCHES BOTTOM |
| Surface Finish | 32.0 MICROINCHES INNER |
| Material | COPPER ALLOY OVERALL |
| Surface Finish | 32.0 MICROINCHES OUTER |
| Peripheral Shape Style | ROUND |
| Outside Left Corner Chamfer Angle | 60.0 DEGREES NOMINAL |
| Overall Diameter | 2.249 INCHES NOMINAL IN |
| Thickness | 0.377 INCHES NOMINAL IN |
| Surface Finish | 32.0 MICROINCHES TOP |
| Hole Diameter | 0.900 INCHES NOMINAL IN |
| Center Hole Shape Style | ROUND |
| Cross-Sectional Shape Style | BLANK RECTANGULAR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 307P | Frederick Custom Machining Inc (USA) |
| 27979-A-307P PRIMARY | Frederick Custom Machining Inc (USA) |
NSN 5310-00-063-2608 is a Washer,flat, manufactured by Frederick Custom Machining Inc, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-063-2608 has 2 cross-referenced part numbers: 307P (Frederick Custom Machining Inc), 27979-A-307P (Frederick Custom Machining Inc).
There are 4 known substitutes for 5310-00-063-2608: 3110-00-109-1400, 2805-00-594-8828, 3110-00-630-3227 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 27979-A-307P: Surface Finish: 8.0 MICROINCHES BOTTOM; Surface Finish: 32.0 MICROINCHES INNER; Material: COPPER ALLOY OVERALL; Surface Finish: 32.0 MICROINCHES OUTER. 13 total characteristics are documented in the Federal Logistics Information System.