# NSN 5310-00-159-6281: Washer, Key

NSN 5310-00-159-6281 (also written 5310001596281; NIIN 00-159-6281) is a washer, key 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: 5310-00-159-6281 (5310001596281)
- NIIN: 00-159-6281 (001596281)
- Item name: WASHER,KEY
- 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 0.515 AND INCHES MAXIMUM 0.520 |
| ABLD | EXTERNAL TAPERED KEY WIDTH | INCHES MINIMUM 0.425 AND INCHES MAXIMUM 0.435 |
| ABLF | EXTERNAL PREBENT KEY WIDTH | INCHES MINIMUM 0.200 AND INCHES MAXIMUM 0.205 |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | INCHES MINIMUM 0.465 AND INCHES MAXIMUM 0.475 |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | INCHES MINIMUM 1.087 AND INCHES MAXIMUM 1.115 |
| ABMM | SPLIT KEY LENGTH | INCHES MINIMUM 0.215 AND INCHES MAXIMUM 0.220 |
| ABMQ | EXTERNAL KEY QUANTITY | 3 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5510 |
| STYL | STYLE DESIGNATOR | — |
| MATT | MATERIAL | OVERALL STEEL COMP 321 |
| CSYM | SURFACE FINISH | BOTTOM MICROINCHES 32.0 |
| CSYM | SURFACE FINISH | TOP MICROINCHES 16.0 |
| CSFW | ANGLE BETWEEN EXTERNAL KEYS | DEGREES MINIMUM 58.0 AND DEGREES MAXIMUM 62.0 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.745 AND INCHES MAXIMUM 0.755 |
| ABKY | EXTERNAL PREBENT KEY LENGTH | INCHES MINIMUM 0.150 AND INCHES MAXIMUM 0.160 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.032 AND INCHES MAXIMUM 0.040 |
| CSKN | EXTERNAL PREBENT KEY ANGLE | DEGREES NOMINAL 15.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| MS9276-14 | 1E0F1 | ROLLS ROYCE CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS9276-14 | 74703 | LOCKHEED MARTIN AERONAUTICAL SYSTEMS SUPPORT COMPANY DBA LMASSC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS9276-14 | 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 |
| --- | --- | --- | --- | --- | --- |
| 2026-09-09 | $0.90 | 826 | TM850 | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310001596281) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-09 | [SPE4A626P0L47](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310001596281) | WASHER, KEY | — | $743.40 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310001596281&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310001596281
- 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/5310-00-159-6281/
JSON: https://nsnexplorer.com/api/nsn/5310-00-159-6281.json