The Washer,flat, cataloged under National Stock Number 5310-00-274-7870, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-274-7870 |
| Primary Part Number | B20-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Center Hole Shape Style | ROUND |
| Features Provided | CASEHARDENED |
| Cross-Sectional Shape Style | RECTANGULAR |
| Thickness | 0.125 INCHES NOMINAL IN |
| Hole Diameter | 0.531 INCHES NOMINAL IN |
| Peripheral Shape Style | ROUND |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Material | STEEL COMP 1010 OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-274-7870 is a Washer,flat, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-274-7870 has 2 cross-referenced part numbers: 108A5 (Diamond Reo Truck Co), B20-1 (Dresser Industries Inc Leroi Div).
There are 6 known substitutes for 5310-00-274-7870: 1730-00-133-6989, 4310-00-919-6802, 5330-01-004-4899 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for B20-1: Center Hole Shape Style: ROUND; Features Provided: CASEHARDENED; Cross-Sectional Shape Style: RECTANGULAR; Thickness: 0.125 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.