The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-639-4948, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Textron Lycoming Inc Williamsport Plant. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-639-4948 |
| Primary Part Number | 67688 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Textron Lycoming Inc Williamsport Plant |
| Status | ACTIVE |
| Material Document and Classification | AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.250 INCHES IN |
| Bearing Surface Type | CHAMFERED |
| Thread Quantity Per Inch | 16 |
| Thread Series | UN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Thread Class | 3B |
| Width Across Flats | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Nut Height | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Material | STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-639-4948 is a Nut,plain,hexagon, manufactured by Textron Lycoming Inc Williamsport Plant, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-639-4948 has 2 cross-referenced part numbers: 67688 (Satair A/s), 67688 (Textron Lycoming Inc Williamsport Plant).
There is 1 known substitute for 5310-00-639-4948: 5307-01-397-6542. Verify interchangeability with system specifications before substitution.
Key specifications for 67688: Material Document and Classification: AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Size: 2.250 INCHES IN; Bearing Surface Type: CHAMFERED. 12 total characteristics are documented in the Federal Logistics Information System.