# NSN 5310-00-452-9781: Washer, Recessed

NSN 5310-00-452-9781 (also written 5310004529781; NIIN 00-452-9781) is a washer, recessed in Federal Supply Class 5310, Nuts and Washers. 4 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-00-452-9781 (5310004529781)
- NIIN: 00-452-9781 (004529781)
- 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 Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABMD | RECESS DIAMETER | INCHES MINIMUM 0.483 AND INCHES MAXIMUM 0.495 |
| MATT | MATERIAL | OVERALL STEEL COMP 4130 OR STEEL COMP 1035 OR STEEL COMP 1040 OR STEEL COMP 1050 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD 1ST MATERIAL RESPONSE SAE OR ASSN STD 2ND MATERIAL RESPONSE AISI OR ASSN STD 3RD MATERIAL RESPONSE AISI OR ASSN STD 4TH MATERIAL RESPONSE AISI |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.378 AND INCHES MAXIMUM 0.388 |
| STYL | STYLE DESIGNATOR | — |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.068 AND INCHES MAXIMUM 0.088 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.677 AND INCHES MAXIMUM 0.697 |
| CSTM | RECESS ANGLE | DEGREES NOMINAL 45.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10121395 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5310PL0200389 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 99-1450012 | 99995 | NATO STOCK NUMBER ASSIGNED BY ANOTHER NATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DAS2081-3 | K1037 | MEGGITT AEROSPACE LIMITED | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-08 | $21.10 | 13 | MEGGITT AEROSPACE LIMITED | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004529781) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-08 | [SPE4A124G0001/SPE4A526F9174](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004529781) | WASHER, RECESSED | MEGGITT AEROSPACE LIMITED | $274.30 |
| 2026-08-18 | [SPE4A124G0001/SPE4A526F8754](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004529781) | WASHER, RECESSED | MEGGITT AEROSPACE LIMITED | $337.60 |
| 2026-08-18 | [SPE4A124G0001/SPE4A526F8754](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004529781) | WASHER, RECESSED | MEGGITT AEROSPACE LIMITED | $337.60 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310004529781&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004529781
- 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/5310-00-452-9781/
JSON: https://nsnexplorer.com/api/nsn/5310-00-452-9781.json