# NSN 5310-01-177-5799: Washer, Flat

NSN 5310-01-177-5799 (also written 5310011775799; NIIN 01-177-5799) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-01-177-5799 (5310011775799)
- NIIN: 01-177-5799 (011775799)
- Item name: WASHER,FLAT
- Federal Supply Class: [FSC 5310 Nuts and Washers](https://nsnexplorer.com/fsc/5310/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.256 AND INCHES MAXIMUM 0.270 |
| ABMW | PERIPHERAL SHAPE STYLE | — |
| ABMX | CENTER HOLE SHAPE STYLE | — |
| ABNM | THICKNESS | INCHES NOMINAL 0.031 |
| ADAV | OVERALL DIAMETER | INCHES MINIMUM 0.518 AND INCHES MAXIMUM 0.538 |
| MATT | MATERIAL | OVERALL ALUMINUM ALLOY 2024 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-A-250 TO 4,T3 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| HS306-325 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HS306-325 | 10630 | ANILLO INDUSTRIES LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HS306-325 | 58009 | MOELLER MANUFACTURING & SUPPLY, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HS306-325 | 86928 | SEASTROM MANUFACTURING CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HS306-325 | 8V613 | THE BOEING COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-29 | [SPE4A626PKKK7](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011775799) | WASHER, FLAT | APOLLO AEROSPACE COMPONENTS LLC | $1,176.24 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011775799&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011775799
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/5310-01-177-5799/
JSON: https://nsnexplorer.com/api/nsn/5310-01-177-5799.json