# NSN 5310-00-087-3055: Washer, Lock

NSN 5310-00-087-3055 (also written 5310000873055; NIIN 00-087-3055) is a washer, lock in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-00-087-3055 (5310000873055)
- NIIN: 00-087-3055 (000873055)
- Item name: WASHER,LOCK
- 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 2026-10-23)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.255 AND INCHES MAXIMUM 0.263 |
| ABKV | OUTSIDE DIAMETER | INCHES NOMINAL 0.489 |
| ABPX | MATERIAL THICKNESS | INCHES NOMINAL 0.062 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 35.0 AND ROCKWELL C MAXIMUM 43.0 |
| MATT | MATERIAL | OVERALL STEEL COMP 420 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL FED STD ALL MATERIAL RESPONSES 66 |
| SFTT | SURFACE TREATMENT | OVERALL PASSIVATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 5310PL2348907 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NAS1640-416 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SCB645752-158 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-15 | [SPE4A626D61UT/SPE4A626F430K](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310000873055) | WASHER, LOCK | INDIAN AEROSPACE, INC. | $23,300.38 |
| 2026-08-26 | [SPE4A626D61UT](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310000873055) | WASHER, LOCK | INDIAN AEROSPACE, INC. | $350,000.00 |
| 2026-08-10 | [SPE4A626PAS79](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310000873055) | WASHER, LOCK | DIALOGIC CORP DBA DIALOGIC FASTENERS | $5,304.00 |
| 2026-08-05 | [SPE4A626PAP17](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310000873055) | WASHER, LOCK | DIALOGIC CORP DBA DIALOGIC FASTENERS | $3,420.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310000873055&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310000873055
- 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/5310-00-087-3055/
JSON: https://nsnexplorer.com/api/nsn/5310-00-087-3055.json