The Nut,sheet Spring, cataloged under National Stock Number 5310-01-448-3219, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-448-3219 |
| Primary Part Number | 12339426 |
| Item Name | Nut,sheet Spring |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Nut Width | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Nut Length | 0.625 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM B633 TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Thickness | 0.031 INCHES NOMINAL IN |
| Panel Thickness | 0.074 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Mating Member Diameter Accommodated | 0.310 INCHES NOMINAL IN |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Nut Style | SHEET SPRING |
| Material | STEEL 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 |
|---|---|
| 12339426 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0821675 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 456720124800 | 6/9 Informative reference only Ncb Hungary (honvedsegi Egyseges Termekkod) |
NSN 5310-01-448-3219 is a Nut,sheet Spring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-448-3219 has 1 manufacturer part number on file: 12339426 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12339426: Nut Width: 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN; Nut Length: 0.625 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM B633 TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Material Thickness: 0.031 INCHES NOMINAL IN. 9 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.