The Nut,plain,plate, cataloged under National Stock Number 5310-01-250-5247, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Tricor Systems Inc. Government technical data includes 13 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-250-5247 |
| Primary Part Number | 121-546 |
| Item Name | Nut,plain,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Tricor Systems Inc |
| Status | ACTIVE |
| Plate Thickness | 0.063 INCHES NOMINAL0.063 INCHES NOMINAL IN |
| Nut Length | 9.500 INCHES NOMINAL9.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BASE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| Plate Width | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/8,H32 FED SPEC SINGLE MATERIAL RESPONSE BASE |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES0.164 INCHES IN |
| Surface Treatment | CHROMATE BASE |
| Thread Class | 2B2B |
| Thread Quantity Per Inch | 3232 |
| Material | ALUMINUM ALLOY 5052 BASE |
| Material | STEEL NUT |
| 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 |
|---|---|
| 121-546 PRIMARY | Tricor Systems Inc (USA) |
NSN 5310-01-250-5247 is a Nut,plain,plate, manufactured by Tricor Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-250-5247 has 1 manufacturer part number on file: 121-546 (Tricor Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 2510-01-655-5511. Verify interchangeability with system specifications before substitution.
Key specifications for 121-546: Plate Thickness: 0.063 INCHES NOMINAL0.063 INCHES NOMINAL IN; Nut Length: 9.500 INCHES NOMINAL9.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BASE; Thread Series: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC). 13 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.