# NSN 5310-01-161-9984: Washer, Recessed

NSN 5310-01-161-9984 (also written 5310011619984; NIIN 01-161-9984) is a washer, recessed in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-01-161-9984 (5310011619984)
- NIIN: 01-161-9984 (011619984)
- Item name: WASHER,RECESSED
- 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 |
| --- | --- | --- |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.314 AND INCHES MAXIMUM 0.318 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.531 AND INCHES MAXIMUM 0.551 |
| ABMD | RECESS DIAMETER | INCHES MINIMUM 0.402 AND INCHES MAXIMUM 0.412 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.054 AND INCHES MAXIMUM 0.070 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 40.0 AND ROCKWELL C MAXIMUM 45.0 |
| CSTM | RECESS ANGLE | DEGREES NOMINAL 90.0 |
| MATT | MATERIAL | OVERALL STEEL COMP XM-13 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5629 |
| 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 |
| --- | --- | --- | --- |
| LD153-0027-1005 | 43999 | THE BOEING COMPANY DIV LEGACY AM&M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-23 | $5.41 | 790 | FABRICATION SPECIALTY INC DBA FABRICATION SPECIALTY INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011619984) |
| 2026-09-02 | $50.00 | 51 | FABRICATION SPECIALTY INC DBA FABRICATION SPECIALTY INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011619984) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-23 | [SPE4A626P00G4](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011619984) | WASHER, RECESSED | FABRICATION SPECIALTY INC DBA FABRICATION SPECIALTY INC | $4,273.90 |
| 2026-09-02 | [SPE4A626P0H71](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011619984) | WASHER, RECESSED | FABRICATION SPECIALTY INC DBA FABRICATION SPECIALTY INC | $2,550.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011619984&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011619984
- 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/5310-01-161-9984/
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