The Washer,flat, cataloged under National Stock Number 5310-00-639-1500, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Elbitamerica, Inc.. Government technical data includes 9 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-639-1500 |
| Primary Part Number | 1289C42-3 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Elbitamerica, Inc. |
| Status | CANCELLED |
| Hardness Rating | 82.0 ROCKWELL B MINIMUM AND 90.0 ROCKWELL B MAXIMUM |
| Material | COPPER ALLOY OVERALL |
| Material Document and Classification | QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Peripheral Shape Style | ROUND |
| Cross-Sectional Shape Style | RECTANGULAR |
| Thickness | 0.031 INCHES NOMINAL IN |
| Hole Diameter | 0.126 INCHES NOMINAL IN |
| Overall Diameter | 0.250 INCHES NOMINAL IN |
| Center Hole Shape Style | ROUND |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5310-00-639-1500 is a Washer,flat, manufactured by Elbitamerica, Inc., classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-639-1500 has 3 cross-referenced part numbers: 533-639 (Egoltronics Corporation), 533-639 (Logetronics Corporation), 1289C42-3 (Elbitamerica, Inc.).
There is 1 known substitute for 5310-00-639-1500: 5920-00-228-4454. Verify interchangeability with system specifications before substitution.
Key specifications for 1289C42-3: Hardness Rating: 82.0 ROCKWELL B MINIMUM AND 90.0 ROCKWELL B MAXIMUM; Material: COPPER ALLOY OVERALL; Material Document and Classification: QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Peripheral Shape Style: ROUND. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-639-1500 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.