The Washer,flat, cataloged under National Stock Number 5310-00-481-9485, 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 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-481-9485 |
| Primary Part Number | 8327120 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE2,CLASS3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Heat Treatment | QUENCHED AND TEMPERED |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OR QQ-S-700 FED SPEC 1ST MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1045 OR STEEL COMP 321 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.906 INCHES NOMINAL IN |
| Thickness | 0.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-00-481-9485 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 5310-00-481-9485 has 3 manufacturer part numbers on file: 8327120 (U S Army Tank Automotive Command Amsta-Im-Mm), 1829N638Z (Meritor Heavy Vehicle Systems, Llc), 1829N638Z (Meritor Industrial Products, Llc).
Key specifications for 8327120: Surface Treatment Document and Classification: QQ-Z-325,TYPE2,CLASS3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Heat Treatment: QUENCHED AND TEMPERED; Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OR QQ-S-700 FED SPEC 1ST MATERIAL RESPONSE OVERALL. 11 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.