The Washer,flat, cataloged under National Stock Number 5310-00-761-4240, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kaman Aerospace Corporation Dba Air Vehicles & Mro Division. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-761-4240 |
| Primary Part Number | K674580-11 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Kaman Aerospace Corporation Dba Air Vehicles & Mro Division |
| Status | CANCELLED |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 4340 OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Surface Treatment Document and Classification | QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Thickness | 0.125 INCHES NOMINAL IN |
| Hole Diameter | 0.328 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 306283 | Evinrude Motors Product Group of Outboard Marine Corp (USA) |
| K674580-11 PRIMARY | Kaman Aerospace Corporation Dba Air Vehicles & Mro Division (USA) |
| 306283 | Zf Industrieantriebe Witten Gmbh (DEU) |
NSN 5310-00-761-4240 is a Washer,flat, manufactured by Kaman Aerospace Corporation Dba Air Vehicles & Mro Division, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-761-4240 has 3 cross-referenced part numbers: 306283 (Evinrude Motors Product Group of Outboard Marine Corp), K674580-11 (Kaman Aerospace Corporation Dba Air Vehicles & Mro Division), 306283 (Zf Industrieantriebe Witten Gmbh).
There are 2 known substitutes for 5310-00-761-4240: 5310-00-138-9785, 3930-00-359-4163. Verify interchangeability with system specifications before substitution.
Key specifications for K674580-11: Hardness Rating: 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Material Document and Classification: MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 4340 OVERALL; Surface Treatment: CADMIUM OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-761-4240 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.