The Washer,flat, cataloged under National Stock Number 5310-01-568-2355, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-568-2355 |
| Primary Part Number | 12505345 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| End Cut Angle | 45.0 DEGREES NOMINAL |
| Width Across Flats | 18.5 MILLIMETERS NOMINAL MM |
| Length | 25.4 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | 19207 12420325 METHOD 1 OR 4 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A1008/A1008M, SHEET. COLD ROLLED (14 GA) ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PAINT OVERALL |
| Peripheral Shape Style | RECTANGULAR |
| Material | STEEL COMP 1008 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 8.5 MILLIMETERS NOMINAL MM |
| Thickness | 1.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 12505345 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-568-2355 is a Washer,flat, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-568-2355 has 1 manufacturer part number on file: 12505345 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12505345: End Cut Angle: 45.0 DEGREES NOMINAL; Width Across Flats: 18.5 MILLIMETERS NOMINAL MM; Length: 25.4 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: 19207 12420325 METHOD 1 OR 4 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 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.