The Washer,flat, cataloged under National Stock Number 5310-00-734-3396, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mack Trucks Inc Parts Opn. Government technical data includes 10 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 | 5310-00-734-3396 |
| Primary Part Number | 37AX28 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mack Trucks Inc Parts Opn |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE AND QQ-Z-325,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.516 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 |
| Part Number | Manufacturer |
|---|---|
| 37AX28 PRIMARY | Mack Trucks Inc Parts Opn (USA) |
NSN 5310-00-734-3396 is a Washer,flat, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-734-3396 has 1 manufacturer part number on file: 37AX28 (Mack Trucks Inc Parts Opn).
Key specifications for 37AX28: Surface Treatment Document and Classification: QQ-P-416 TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE AND QQ-Z-325,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Overall Diameter: 1.250 INCHES NOMINAL IN; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.