The Washer,flat, cataloged under National Stock Number 5310-01-193-3991, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corp Electronics and Missiles Div. Government technical data includes 10 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-193-3991 |
| Primary Part Number | 240658 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Lockheed Martin Corp Electronics and Missiles Div |
| Status | ACTIVE |
| Peripheral Shape Style | ROUND |
| Hole Diameter | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL |
| Material Document and Classification | QQ-S-766, COND A, FINISH 2D OR 2B FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thickness | 0.032 INCHES NOMINAL IN |
| Center Hole Shape Style | ROUND |
| Overall Diameter | 0.312 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 240658 PRIMARY | Lockheed Martin Corp Electronics and Missiles Div (USA) |
NSN 5310-01-193-3991 is a Washer,flat, manufactured by Lockheed Martin Corp Electronics and Missiles Div, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-193-3991 has 1 cross-referenced part number: 240658 (Lockheed Martin Corp Electronics and Missiles Div).
There are 2 known substitutes for 5310-01-193-3991: 5985-01-050-5082, 6550-01-158-1182. Verify interchangeability with system specifications before substitution.
Key specifications for 240658: Peripheral Shape Style: ROUND; Hole Diameter: 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN; Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL; Material Document and Classification: QQ-S-766, COND A, FINISH 2D OR 2B FED SPEC ALL MATERIAL RESPONSES OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.