# NSN 5310-00-576-7727: Nut, Self-Locking, Castellated, Hex

NSN 5310-00-576-7727 (also written 5310005767727; NIIN 00-576-7727) is a nut, self-locking, castellated, hex in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 5310-00-576-7727 (5310005767727)
- NIIN: 00-576-7727 (005767727)
- Item name: NUT,SELF-LOCKING,CASTELLATED,HEX
- 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 B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| ADEA | NUT HEIGHT | INCHES MINIMUM 0.235 AND INCHES MAXIMUM 0.250 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.367 AND INCHES MAXIMUM 0.376 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 17.0 AND ROCKWELL C MAXIMUM 26.0 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE TREATMENT RESPONSE A-S 2400 |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATT | MATERIAL | OVERALL STEEL COMP 11L37 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5020 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.190 |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| CRTM | BEARING SURFACE TYPE | WASHER FACED |
| FEAT | SPECIAL FEATURES | THIS PART MEETS THE Y REQUIREMENTS DUE TO CRITICAL FEATURES, TOLERANCES,FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS.ACTION ID 45543532 |
| ACTA | NUT STYLE | — |
| BZRR | THREAD SERIES | UNF |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 261702 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 791718 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310005767727&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310005767727
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/5310-00-576-7727/
JSON: https://nsnexplorer.com/api/nsn/5310-00-576-7727.json