The Nut,plain,plate, cataloged under National Stock Number 5310-01-377-9139, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-377-9139 |
| Primary Part Number | 5498590-1 |
| Item Name | Nut,plain,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nut Length | 3.150 INCHES MINIMUM AND 3.210 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35, TY 1,2,3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | ACME |
| Plate Width | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.280 INCHES MINIMUM AND 0.287 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Center to Center Distance Between Mounting Holes Along Width | 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.750 INCHES IN |
| Center to Center Distance Between Mounting Holes Along Length | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 416 OVERALL |
| Nut Mounting Provision | STRAIGHT HOLES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-377-9139 is a Nut,plain,plate, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-377-9139 has 2 manufacturer part numbers on file: 5498590-1 (Naval Sea Systems Command), 5498590-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 5498590-1: Nut Length: 3.150 INCHES MINIMUM AND 3.210 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35, TY 1,2,3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: ACME; Plate Width: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN. 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.