The Nut,plain,spline, cataloged under National Stock Number 5310-01-299-2469, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mpc Products Corporation Dba Woodward Mpc, Inc.. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-299-2469 |
| Primary Part Number | 299-4567-138A |
| Item Name | Nut,plain,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mpc Products Corporation Dba Woodward Mpc, Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | EI 999-5902-003C MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | ASTM A581 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582,TY416SFTT2AADPSA000 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Diameter | 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Pilot Diameter | 0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Pilot Length | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Nut Height | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Nut Style | SPLINE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 303 OR STEEL COMP 416 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 299-4567-138A PRIMARY | Mpc Products Corporation Dba Woodward Mpc, Inc. (USA) |
NSN 5310-01-299-2469 is a Nut,plain,spline, manufactured by Mpc Products Corporation Dba Woodward Mpc, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-299-2469 has 1 manufacturer part number on file: 299-4567-138A (Mpc Products Corporation Dba Woodward Mpc, Inc.).
Key specifications for 299-4567-138A: Surface Treatment Document and Classification: EI 999-5902-003C MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Material Document and Classification: ASTM A581 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582,TY416SFTT2AADPSA000 ASSN STD 2ND MATERIAL RESPONSE OVERALL. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.