# NSN 5310-01-163-1985: Nut, Self-Locking, Extended Washer

NSN 5310-01-163-1985 (also written 5310011631985; NIIN 01-163-1985) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-01-163-1985 (5310011631985)
- NIIN: 01-163-1985 (011631985)
- Item name: NUT,SELF-LOCKING,EXTENDED WASHER
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MAXIMUM 0.729 |
| ABAJ | LUBRICATION | DRY FILM LUBRICANT |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 0.438 |
| ACTA | NUT STYLE | — |
| ADEM | WASHER THICKNESS | INCHES NOMINAL 0.069 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.553 AND INCHES MAXIMUM 0.564 |
| AZKQ | TEMP RATING | FAHRENHEIT MAXIMUM 450.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQFM | HARDNESS RATING | ROCKWELL C MAXIMUM 45.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.438 |
| MATT | MATERIAL | OVERALL STEEL COMP 601 OR STEEL COMP H11 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD 1ST MATERIAL RESPONSE A-S 6304 OR ASSN STD 2ND MATERIAL RESPONSE A-S 6487 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,CL 2 |
| ZZZK | SPECIFICATION/STANDARD DATA | PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 80205-NAS1804 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 944.81.21.322 | S4080 | PILATUS AIRCRAFT LTD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NAS1804-7 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| Z00.N5412522463 | F0086 | DAHER AEROSPACE - EX SOCATA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-29 | $8.29 | 1,039 | 8EW99 | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011631985) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-29 | [SPE4A627P3397](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011631985) | NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE | — | $8,613.31 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011631985&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011631985
- 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/5310-01-163-1985/
JSON: https://nsnexplorer.com/api/nsn/5310-01-163-1985.json