# NSN 5310-01-541-3170: Nut, Self-Locking, Extended Washer

NSN 5310-01-541-3170 (also written 5310015413170; NIIN 01-541-3170) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Nov 2026.

## Identification

- NSN: 5310-01-541-3170 (5310015413170)
- NIIN: 01-541-3170 (015413170)
- 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 R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-11-06)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES NOMINAL 0.299 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 0.625 |
| ACTA | NUT STYLE | — |
| ADEM | WASHER THICKNESS | INCHES NOMINAL 0.084 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.243 AND INCHES MAXIMUM 0.251 |
| AZKQ | TEMP RATING | FAHRENHEIT MINIMUM 450.0 AND FAHRENHEIT MAXIMUM 800.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.625 |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | ITEM IS LANDING GEAR SPECIFIC AND HAS CRITICAL TOLERANCES AND DIMENSIONS THAT MUST BE ADHERED TO FOR SAFE OPERATION |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5737 |
| PRMT | PRECIOUS MATERIAL | SILVER |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 80020-1018P | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-11-05 | [SPE4A726D0018/SPE4A727F1340](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015413170) | NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE | APOLLO AEROSPACE COMPONENTS LLC | $98,490.39 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310015413170&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015413170
- 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/5310-01-541-3170/
JSON: https://nsnexplorer.com/api/nsn/5310-01-541-3170.json