The Nut,sheet Spring, cataloged under National Stock Number 5310-01-021-2665, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-021-2665 |
| Primary Part Number | 1404500 |
| Item Name | Nut,sheet Spring |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Nut Width | 0.500 INCHES MAXIMUM IN |
| Nut Length | 1.062 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Mounting Hole Diameter | 0.135 INCHES NOMINAL IN |
| Material Thickness | 0.025 INCHES MAXIMUM IN |
| Distance From Aperture Center to Mounting Hole Center | 0.375 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Length | 0.750 INCHES NOMINAL IN |
| Mating Member Diameter Accommodated | 0.205 INCHES NOMINAL IN |
| Surface Treatment | ALUMINUM OVERALL |
| Nut Style | SHEET SPRING |
| Material | STEEL 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 |
| Part Number | Manufacturer |
|---|---|
| 1404500 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 12-11020-11 | 5/1 Secondary reference U.S. Government activity |
NSN 5310-01-021-2665 is a Nut,sheet Spring, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-021-2665 has 1 manufacturer part number on file: 1404500 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5307-01-210-1762. Verify interchangeability with system specifications before substitution.
Key specifications for 1404500: Nut Width: 0.500 INCHES MAXIMUM IN; Nut Length: 1.062 INCHES MAXIMUM IN; Mounting Hole Arrangement Style: 2 HOLES; Mounting Hole Diameter: 0.135 INCHES NOMINAL IN. 12 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.