We’re pleased to announce that part number M4BS4320 with NSN 5310011812503 is now available in our ready-to-ship inventory. Manufactured by B E Aerospace Consumables Management having CAGE Code K4975 under FSC 5310 Nuts and Washers, M4BS4320 part is a Washer Flat. Are you interested in a quick quote for M4BS4320 part? All you have to do is fill in the RFQ form below with your information, and we will take care of the rest. A dedicated sales representative will respond to your RFQ by email or by phone within 15 minutes of receiving this form.
| Part Number: M4BS4320 | NSN: 5310-01-181-2503 (5310011812503) | Item Name: Washer Flat | NIIN : 011812503 | |
| CAGE Code: k4975 | FSC: 5310 Nuts and Washers | FSG: 53 Hardware and Abrasives | Category: NSN | |
| Qty Available: 1057 | Description: Washer Flat | Manufacturer: B E Aerospace Consumables Management | Last Updated: 05-23-2025 | Country: USA |
| NCB Code: 01 | INC Code: 13393 | |||
Your quote will be calculated based on your answers to asterisk-marked (*) fields such as Needs Parts By and Quantity (ea), so be sure to fill them out as best and as thorough as possible. ASAP Aviation Stock, owned and operated by ASAP Semiconductor, is a leading supplier of NSN parts - with more than 2 billion NSNs in stock.
We are an AS9120B, ISO 9001:2015, and FAA 0056B accredited company and have several warehouses full of ready-to-ship parts in key locations across the US and Canada. This allows us to fulfill AOG requirements in a timely manner with ease. Need to meet your requirements ASAP? No problem, we offer same day shipping and next day shipping on qualifying items.
The National Stock Number, also known as NSN, is recognized and utilized as a cataloging system for procuring, stocking, and issuing items by all members of the North Atlantic Treaty Organization (NATO) and the United States’ Department of Defense (DoD). To learn more about M4BS4320 part with NSN 5310011812503, call us at our toll-free number +1-714-705-4780, or email us at sales@asapaviationstock.com.
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 5310-01-181-2503 Item Description: WASHER,FLAT | 5310 | 011812503 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | A | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| 081937-99 | 5 | 2 | 5 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 0.173 INCHES NOMINAL |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.035 INCHES NOMINAL |
| ADAV | OVERALL DIAMETER | 0.354 INCHES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BS4320 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| 2010000011565 | 3010000016187 |
| 1510010879129 | 4010000019590 |
| 5110000122252 | 6010012320400 |
| 7010003227140 | 8150014633182 |
| 1510001240914 | 1510000808414 |
| View All | |
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