# NSN 5310-01-098-4138: Washer, Recessed

NSN 5310-01-098-4138 (also written 5310010984138; NIIN 01-098-4138) 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 Oct 2026.

## Identification

- NSN: 5310-01-098-4138 (5310010984138)
- NIIN: 01-098-4138 (010984138)
- 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 0.255 AND INCHES MAXIMUM 0.270 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.550 AND INCHES MAXIMUM 0.570 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.125 AND INCHES MAXIMUM 0.135 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 50.0 AND ROCKWELL C MAXIMUM 56.0 |
| CQJW | TOP RECESS DIAMETER | INCHES MINIMUM 0.332 AND INCHES MAXIMUM 0.342 |
| CRKG | BOTTOM RECESS ANGLE | DEGREES NOMINAL 90.0 |
| CRSD | TOP RECESS ANGLE | DEGREES NOMINAL 90.0 |
| CSML | BOTTOM RECESS DIAMETER | INCHES MINIMUM 0.332 AND INCHES MAXIMUM 0.342 |
| CSYM | SURFACE FINISH | TOP MICROINCHES 63.0 |
| CSYM | SURFACE FINISH | BOTTOM MICROINCHES 63.0 |
| MATT | MATERIAL | OVERALL STEEL COMP H11 OR STEEL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD 1ST MATERIAL RESPONSE A-S 6485 OR ASSN STD 2ND MATERIAL RESPONSE A-S 6437 |
| SFTT | SURFACE TREATMENT | OVERALL NICKEL AND CADMIUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE TREATMENT RESPONSE A-S 2416 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| MS9482-10 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-15 | $25.00 | 4 | BOEING DISTRIBUTION SERVICES X, INC. | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310010984138) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-15 | [SPE4A027P0191](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310010984138) | WASHER, RECESSED | BOEING DISTRIBUTION SERVICES X, INC. | $100.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310010984138&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310010984138
- 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/5310-01-098-4138/
JSON: https://nsnexplorer.com/api/nsn/5310-01-098-4138.json