The Washer,flat, cataloged under National Stock Number 5310-00-205-9908, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-205-9908 |
| Primary Part Number | 00551 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Thickness | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Peripheral Shape Style | ROUND |
| Surface Finish | 63.0 MICROINCHES OUTER |
| Surface Finish | 32.0 MICROINCHES BOTTOM |
| Material | STEEL COMP 8640H OVERALL |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Hole Diameter | 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN |
| Overall Diameter | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Surface Finish | 32.0 MICROINCHES TOP |
| Surface Finish | 63.0 MICROINCHES INNER |
| Center Hole Shape Style | ROUND |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 00551 PRIMARY | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
NSN 5310-00-205-9908 is a Washer,flat, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-205-9908 has 1 cross-referenced part number: 00551 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
There is 1 known substitute for 5310-00-205-9908: 1680-00-860-6234. Verify interchangeability with system specifications before substitution.
Key specifications for 00551: Thickness: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Surface Finish: 63.0 MICROINCHES OUTER; Surface Finish: 32.0 MICROINCHES BOTTOM. 13 total characteristics are documented in the Federal Logistics Information System.